Home / 21,260.70-31,903.20-14,691.60

Finding the Fourth Proportional to 21,260.70, 31,903.20 and 14,691.60

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Solution

The fourth proportional to 21,260.70, 31,903.20 and 14,691.60 is: 22,045.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,260.70 : 31,903.20 = 14,691.60 : x
  2. Step 2: Convert to fraction form
    21,260.70/31,903.20 = 14,691.60/x
  3. Step 3: Cross multiply
    21,260.70x = 31,903.20 × 14,691.60
  4. Step 4: Simplify right side
    21,260.70x = 468,709,053.12
  5. Step 5: Solve for x
    x = 468,709,053.12/21,260.70
  6. Step 6: Final answer
    x = 22,045.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.