Home / 21,400.59-29,465.73-19,432.29

Finding the Fourth Proportional to 21,400.59, 29,465.73 and 19,432.29

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Solution

The fourth proportional to 21,400.59, 29,465.73 and 19,432.29 is: 26,755.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,400.59 : 29,465.73 = 19,432.29 : x
  2. Step 2: Convert to fraction form
    21,400.59/29,465.73 = 19,432.29/x
  3. Step 3: Cross multiply
    21,400.59x = 29,465.73 × 19,432.29
  4. Step 4: Simplify right side
    21,400.59x = 572,586,610.42
  5. Step 5: Solve for x
    x = 572,586,610.42/21,400.59
  6. Step 6: Final answer
    x = 26,755.65

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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.