Home / 42,717.80-64,087.90-16,423.40

Finding the Fourth Proportional to 42,717.80, 64,087.90 and 16,423.40

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Solution

The fourth proportional to 42,717.80, 64,087.90 and 16,423.40 is: 24,639.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,717.80 : 64,087.90 = 16,423.40 : x
  2. Step 2: Convert to fraction form
    42,717.80/64,087.90 = 16,423.40/x
  3. Step 3: Cross multiply
    42,717.80x = 64,087.90 × 16,423.40
  4. Step 4: Simplify right side
    42,717.80x = 1,052,541,216.86
  5. Step 5: Solve for x
    x = 1,052,541,216.86/42,717.80
  6. Step 6: Final answer
    x = 24,639.41

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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.