Home / 21,332.16-29,438.44-11,901.32

Finding the Fourth Proportional to 21,332.16, 29,438.44 and 11,901.32

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Solution

The fourth proportional to 21,332.16, 29,438.44 and 11,901.32 is: 16,423.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,332.16 : 29,438.44 = 11,901.32 : x
  2. Step 2: Convert to fraction form
    21,332.16/29,438.44 = 11,901.32/x
  3. Step 3: Cross multiply
    21,332.16x = 29,438.44 × 11,901.32
  4. Step 4: Simplify right side
    21,332.16x = 350,356,294.74
  5. Step 5: Solve for x
    x = 350,356,294.74/21,332.16
  6. Step 6: Final answer
    x = 16,423.85

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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.