Home / 42,882.40-64,333.05-14,418.38

Finding the Fourth Proportional to 42,882.40, 64,333.05 and 14,418.38

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Solution

The fourth proportional to 42,882.40, 64,333.05 and 14,418.38 is: 21,630.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,882.40 : 64,333.05 = 14,418.38 : x
  2. Step 2: Convert to fraction form
    42,882.40/64,333.05 = 14,418.38/x
  3. Step 3: Cross multiply
    42,882.40x = 64,333.05 × 14,418.38
  4. Step 4: Simplify right side
    42,882.40x = 927,578,361.46
  5. Step 5: Solve for x
    x = 927,578,361.46/42,882.40
  6. Step 6: Final answer
    x = 21,630.75

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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.