Home / 21,488.28-29,664.96-16,697.52

Finding the Fourth Proportional to 21,488.28, 29,664.96 and 16,697.52

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Solution

The fourth proportional to 21,488.28, 29,664.96 and 16,697.52 is: 23,051.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,488.28 : 29,664.96 = 16,697.52 : x
  2. Step 2: Convert to fraction form
    21,488.28/29,664.96 = 16,697.52/x
  3. Step 3: Cross multiply
    21,488.28x = 29,664.96 × 16,697.52
  4. Step 4: Simplify right side
    21,488.28x = 495,331,262.90
  5. Step 5: Solve for x
    x = 495,331,262.90/21,488.28
  6. Step 6: Final answer
    x = 23,051.23

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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.