Home / 42,649.75-64,003.79-14,947.75

Finding the Fourth Proportional to 42,649.75, 64,003.79 and 14,947.75

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Solution

The fourth proportional to 42,649.75, 64,003.79 and 14,947.75 is: 22,431.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,649.75 : 64,003.79 = 14,947.75 : x
  2. Step 2: Convert to fraction form
    42,649.75/64,003.79 = 14,947.75/x
  3. Step 3: Cross multiply
    42,649.75x = 64,003.79 × 14,947.75
  4. Step 4: Simplify right side
    42,649.75x = 956,712,651.97
  5. Step 5: Solve for x
    x = 956,712,651.97/42,649.75
  6. Step 6: Final answer
    x = 22,431.85

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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.