Home / 42,731.80-64,108.90-16,437.40

Finding the Fourth Proportional to 42,731.80, 64,108.90 and 16,437.40

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Solution

The fourth proportional to 42,731.80, 64,108.90 and 16,437.40 is: 24,660.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,731.80 : 64,108.90 = 16,437.40 : x
  2. Step 2: Convert to fraction form
    42,731.80/64,108.90 = 16,437.40/x
  3. Step 3: Cross multiply
    42,731.80x = 64,108.90 × 16,437.40
  4. Step 4: Simplify right side
    42,731.80x = 1,053,783,632.86
  5. Step 5: Solve for x
    x = 1,053,783,632.86/42,731.80
  6. Step 6: Final answer
    x = 24,660.41

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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.