Home / 21,434.59-29,581.14-12,003.76

Finding the Fourth Proportional to 21,434.59, 29,581.14 and 12,003.76

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Solution

The fourth proportional to 21,434.59, 29,581.14 and 12,003.76 is: 16,565.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,434.59 : 29,581.14 = 12,003.76 : x
  2. Step 2: Convert to fraction form
    21,434.59/29,581.14 = 12,003.76/x
  3. Step 3: Cross multiply
    21,434.59x = 29,581.14 × 12,003.76
  4. Step 4: Simplify right side
    21,434.59x = 355,084,905.09
  5. Step 5: Solve for x
    x = 355,084,905.09/21,434.59
  6. Step 6: Final answer
    x = 16,565.98

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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.