Home / 42,942.29-64,432.60-16,649.08

Finding the Fourth Proportional to 42,942.29, 64,432.60 and 16,649.08

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Solution

The fourth proportional to 42,942.29, 64,432.60 and 16,649.08 is: 24,981.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,942.29 : 64,432.60 = 16,649.08 : x
  2. Step 2: Convert to fraction form
    42,942.29/64,432.60 = 16,649.08/x
  3. Step 3: Cross multiply
    42,942.29x = 64,432.60 × 16,649.08
  4. Step 4: Simplify right side
    42,942.29x = 1,072,743,309.30
  5. Step 5: Solve for x
    x = 1,072,743,309.30/42,942.29
  6. Step 6: Final answer
    x = 24,981.05

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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.