Home / 21,423,425.57-29,584,504.82-14,914,851.74

Finding the Fourth Proportional to 21,423,425.57, 29,584,504.82 and 14,914,851.74

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Solution

The fourth proportional to 21,423,425.57, 29,584,504.82 and 14,914,851.74 is: 20,596,542.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,423,425.57 : 29,584,504.82 = 14,914,851.74 : x
  2. Step 2: Convert to fraction form
    21,423,425.57/29,584,504.82 = 14,914,851.74/x
  3. Step 3: Cross multiply
    21,423,425.57x = 29,584,504.82 × 14,914,851.74
  4. Step 4: Simplify right side
    21,423,425.57x = 441,248,503,080,980
  5. Step 5: Solve for x
    x = 441,248,503,080,980/21,423,425.57
  6. Step 6: Final answer
    x = 20,596,542.87

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.