Home / 21,437.60-29,585.28-12,006.76

Finding the Fourth Proportional to 21,437.60, 29,585.28 and 12,006.76

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Solution

The fourth proportional to 21,437.60, 29,585.28 and 12,006.76 is: 16,570.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,437.60 : 29,585.28 = 12,006.76 : x
  2. Step 2: Convert to fraction form
    21,437.60/29,585.28 = 12,006.76/x
  3. Step 3: Cross multiply
    21,437.60x = 29,585.28 × 12,006.76
  4. Step 4: Simplify right side
    21,437.60x = 355,223,356.49
  5. Step 5: Solve for x
    x = 355,223,356.49/21,437.60
  6. Step 6: Final answer
    x = 16,570.11

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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.