Home / 28,474.47-42,710.49-8,752.19

Finding the Fourth Proportional to 28,474.47, 42,710.49 and 8,752.19

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Solution

The fourth proportional to 28,474.47, 42,710.49 and 8,752.19 is: 13,127.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,474.47 : 42,710.49 = 8,752.19 : x
  2. Step 2: Convert to fraction form
    28,474.47/42,710.49 = 8,752.19/x
  3. Step 3: Cross multiply
    28,474.47x = 42,710.49 × 8,752.19
  4. Step 4: Simplify right side
    28,474.47x = 373,810,109.92
  5. Step 5: Solve for x
    x = 373,810,109.92/28,474.47
  6. Step 6: Final answer
    x = 13,127.90

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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.