Home / 42,202.32-63,312-18,828.76

Finding the Fourth Proportional to 42,202.32, 63,312 and 18,828.76

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Solution

The fourth proportional to 42,202.32, 63,312 and 18,828.76 is: 28,246.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,202.32 : 63,312 = 18,828.76 : x
  2. Step 2: Convert to fraction form
    42,202.32/63,312 = 18,828.76/x
  3. Step 3: Cross multiply
    42,202.32x = 63,312 × 18,828.76
  4. Step 4: Simplify right side
    42,202.32x = 1,192,086,453.12
  5. Step 5: Solve for x
    x = 1,192,086,453.12/42,202.32
  6. Step 6: Final answer
    x = 28,246.94

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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.