Home / 21,032.28-31,531.14-14,350.32

Finding the Fourth Proportional to 21,032.28, 31,531.14 and 14,350.32

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Solution

The fourth proportional to 21,032.28, 31,531.14 and 14,350.32 is: 21,513.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,032.28 : 31,531.14 = 14,350.32 : x
  2. Step 2: Convert to fraction form
    21,032.28/31,531.14 = 14,350.32/x
  3. Step 3: Cross multiply
    21,032.28x = 31,531.14 × 14,350.32
  4. Step 4: Simplify right side
    21,032.28x = 452,481,948.96
  5. Step 5: Solve for x
    x = 452,481,948.96/21,032.28
  6. Step 6: Final answer
    x = 21,513.69

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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.