Home / 42,990.80-64,505.24-16,697.56

Finding the Fourth Proportional to 42,990.80, 64,505.24 and 16,697.56

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Solution

The fourth proportional to 42,990.80, 64,505.24 and 16,697.56 is: 25,053.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,990.80 : 64,505.24 = 16,697.56 : x
  2. Step 2: Convert to fraction form
    42,990.80/64,505.24 = 16,697.56/x
  3. Step 3: Cross multiply
    42,990.80x = 64,505.24 × 16,697.56
  4. Step 4: Simplify right side
    42,990.80x = 1,077,080,115.21
  5. Step 5: Solve for x
    x = 1,077,080,115.21/42,990.80
  6. Step 6: Final answer
    x = 25,053.74

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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.