Home / 21,386.16-29,503.44-14,672.88

Finding the Fourth Proportional to 21,386.16, 29,503.44 and 14,672.88

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Solution

The fourth proportional to 21,386.16, 29,503.44 and 14,672.88 is: 20,242.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,386.16 : 29,503.44 = 14,672.88 : x
  2. Step 2: Convert to fraction form
    21,386.16/29,503.44 = 14,672.88/x
  3. Step 3: Cross multiply
    21,386.16x = 29,503.44 × 14,672.88
  4. Step 4: Simplify right side
    21,386.16x = 432,900,434.71
  5. Step 5: Solve for x
    x = 432,900,434.71/21,386.16
  6. Step 6: Final answer
    x = 20,242.08

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Half 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.