Home / 42,981.23-64,472.64-14,902.20

Finding the Fourth Proportional to 42,981.23, 64,472.64 and 14,902.20

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Solution

The fourth proportional to 42,981.23, 64,472.64 and 14,902.20 is: 22,353.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,981.23 : 64,472.64 = 14,902.20 : x
  2. Step 2: Convert to fraction form
    42,981.23/64,472.64 = 14,902.20/x
  3. Step 3: Cross multiply
    42,981.23x = 64,472.64 × 14,902.20
  4. Step 4: Simplify right side
    42,981.23x = 960,783,996.00
  5. Step 5: Solve for x
    x = 960,783,996.00/42,981.23
  6. Step 6: Final answer
    x = 22,353.57

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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.