Home / 42,942.60-64,419.76-14,855.12

Finding the Fourth Proportional to 42,942.60, 64,419.76 and 14,855.12

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Solution

The fourth proportional to 42,942.60, 64,419.76 and 14,855.12 is: 22,284.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,942.60 : 64,419.76 = 14,855.12 : x
  2. Step 2: Convert to fraction form
    42,942.60/64,419.76 = 14,855.12/x
  3. Step 3: Cross multiply
    42,942.60x = 64,419.76 × 14,855.12
  4. Step 4: Simplify right side
    42,942.60x = 956,963,265.17
  5. Step 5: Solve for x
    x = 956,963,265.17/42,942.60
  6. Step 6: Final answer
    x = 22,284.71

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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.