Home / 21,000.62-28,981.08-11,569.52

Finding the Fourth Proportional to 21,000.62, 28,981.08 and 11,569.52

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Solution

The fourth proportional to 21,000.62, 28,981.08 and 11,569.52 is: 15,966.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,000.62 : 28,981.08 = 11,569.52 : x
  2. Step 2: Convert to fraction form
    21,000.62/28,981.08 = 11,569.52/x
  3. Step 3: Cross multiply
    21,000.62x = 28,981.08 × 11,569.52
  4. Step 4: Simplify right side
    21,000.62x = 335,297,184.68
  5. Step 5: Solve for x
    x = 335,297,184.68/21,000.62
  6. Step 6: Final answer
    x = 15,966.06

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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.