Home / 28,042.08-42,057.18-10,513.20

Finding the Fourth Proportional to 28,042.08, 42,057.18 and 10,513.20

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Solution

The fourth proportional to 28,042.08, 42,057.18 and 10,513.20 is: 15,767.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,042.08 : 42,057.18 = 10,513.20 : x
  2. Step 2: Convert to fraction form
    28,042.08/42,057.18 = 10,513.20/x
  3. Step 3: Cross multiply
    28,042.08x = 42,057.18 × 10,513.20
  4. Step 4: Simplify right side
    28,042.08x = 442,155,544.78
  5. Step 5: Solve for x
    x = 442,155,544.78/28,042.08
  6. Step 6: Final answer
    x = 15,767.57

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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.