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Finding the Fourth Proportional to 28,030.20, 42,046.20 and 10,501.80

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Solution

The fourth proportional to 28,030.20, 42,046.20 and 10,501.80 is: 15,753.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,030.20 : 42,046.20 = 10,501.80 : x
  2. Step 2: Convert to fraction form
    28,030.20/42,046.20 = 10,501.80/x
  3. Step 3: Cross multiply
    28,030.20x = 42,046.20 × 10,501.80
  4. Step 4: Simplify right side
    28,030.20x = 441,560,783.16
  5. Step 5: Solve for x
    x = 441,560,783.16/28,030.20
  6. Step 6: Final answer
    x = 15,753.04

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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.