Home / 28,520.91-42,751.17-9,540.77

Finding the Fourth Proportional to 28,520.91, 42,751.17 and 9,540.77

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Solution

The fourth proportional to 28,520.91, 42,751.17 and 9,540.77 is: 14,301.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,520.91 : 42,751.17 = 9,540.77 : x
  2. Step 2: Convert to fraction form
    28,520.91/42,751.17 = 9,540.77/x
  3. Step 3: Cross multiply
    28,520.91x = 42,751.17 × 9,540.77
  4. Step 4: Simplify right side
    28,520.91x = 407,878,866.45
  5. Step 5: Solve for x
    x = 407,878,866.45/28,520.91
  6. Step 6: Final answer
    x = 14,301.05

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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.