Home / 21,179.29-31,769.22-14,603.71

Finding the Fourth Proportional to 21,179.29, 31,769.22 and 14,603.71

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Solution

The fourth proportional to 21,179.29, 31,769.22 and 14,603.71 is: 21,905.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,179.29 : 31,769.22 = 14,603.71 : x
  2. Step 2: Convert to fraction form
    21,179.29/31,769.22 = 14,603.71/x
  3. Step 3: Cross multiply
    21,179.29x = 31,769.22 × 14,603.71
  4. Step 4: Simplify right side
    21,179.29x = 463,948,475.81
  5. Step 5: Solve for x
    x = 463,948,475.81/21,179.29
  6. Step 6: Final answer
    x = 21,905.76

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1.5x scale

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.