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Finding the Fourth Proportional to 21,617.04, 32,437.71 and 9,931.17

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Solution

The fourth proportional to 21,617.04, 32,437.71 and 9,931.17 is: 14,902.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,617.04 : 32,437.71 = 9,931.17 : x
  2. Step 2: Convert to fraction form
    21,617.04/32,437.71 = 9,931.17/x
  3. Step 3: Cross multiply
    21,617.04x = 32,437.71 × 9,931.17
  4. Step 4: Simplify right side
    21,617.04x = 322,144,412.42
  5. Step 5: Solve for x
    x = 322,144,412.42/21,617.04
  6. Step 6: Final answer
    x = 14,902.34

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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.