Home / 21,575.04-32,342.16-9,881.28

Finding the Fourth Proportional to 21,575.04, 32,342.16 and 9,881.28

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Solution

The fourth proportional to 21,575.04, 32,342.16 and 9,881.28 is: 14,812.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,575.04 : 32,342.16 = 9,881.28 : x
  2. Step 2: Convert to fraction form
    21,575.04/32,342.16 = 9,881.28/x
  3. Step 3: Cross multiply
    21,575.04x = 32,342.16 × 9,881.28
  4. Step 4: Simplify right side
    21,575.04x = 319,581,938.76
  5. Step 5: Solve for x
    x = 319,581,938.76/21,575.04
  6. Step 6: Final answer
    x = 14,812.58

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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.