Home / 21,068.93-31,591.16-9,975.52

Finding the Fourth Proportional to 21,068.93, 31,591.16 and 9,975.52

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Solution

The fourth proportional to 21,068.93, 31,591.16 and 9,975.52 is: 14,957.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,068.93 : 31,591.16 = 9,975.52 : x
  2. Step 2: Convert to fraction form
    21,068.93/31,591.16 = 9,975.52/x
  3. Step 3: Cross multiply
    21,068.93x = 31,591.16 × 9,975.52
  4. Step 4: Simplify right side
    21,068.93x = 315,138,248.40
  5. Step 5: Solve for x
    x = 315,138,248.40/21,068.93
  6. Step 6: Final answer
    x = 14,957.49

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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.