Home / 42,790.10-64,185.17-16,128.87

Finding the Fourth Proportional to 42,790.10, 64,185.17 and 16,128.87

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Solution

The fourth proportional to 42,790.10, 64,185.17 and 16,128.87 is: 24,193.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,790.10 : 64,185.17 = 16,128.87 : x
  2. Step 2: Convert to fraction form
    42,790.10/64,185.17 = 16,128.87/x
  3. Step 3: Cross multiply
    42,790.10x = 64,185.17 × 16,128.87
  4. Step 4: Simplify right side
    42,790.10x = 1,035,234,182.21
  5. Step 5: Solve for x
    x = 1,035,234,182.21/42,790.10
  6. Step 6: Final answer
    x = 24,193.31

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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.