Home / 40,663.92-61,001.76-12,586.32

Finding the Fourth Proportional to 40,663.92, 61,001.76 and 12,586.32

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Solution

The fourth proportional to 40,663.92, 61,001.76 and 12,586.32 is: 18,881.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,663.92 : 61,001.76 = 12,586.32 : x
  2. Step 2: Convert to fraction form
    40,663.92/61,001.76 = 12,586.32/x
  3. Step 3: Cross multiply
    40,663.92x = 61,001.76 × 12,586.32
  4. Step 4: Simplify right side
    40,663.92x = 767,787,671.92
  5. Step 5: Solve for x
    x = 767,787,671.92/40,663.92
  6. Step 6: Final answer
    x = 18,881.30

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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.