Home / 42,529.81-63,792.13-18,830.45

Finding the Fourth Proportional to 42,529.81, 63,792.13 and 18,830.45

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Solution

The fourth proportional to 42,529.81, 63,792.13 and 18,830.45 is: 28,244.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,529.81 : 63,792.13 = 18,830.45 : x
  2. Step 2: Convert to fraction form
    42,529.81/63,792.13 = 18,830.45/x
  3. Step 3: Cross multiply
    42,529.81x = 63,792.13 × 18,830.45
  4. Step 4: Simplify right side
    42,529.81x = 1,201,234,535.62
  5. Step 5: Solve for x
    x = 1,201,234,535.62/42,529.81
  6. Step 6: Final answer
    x = 28,244.53

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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.