Home / 28,402.56-42,576.96-11,752.20

Finding the Fourth Proportional to 28,402.56, 42,576.96 and 11,752.20

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Solution

The fourth proportional to 28,402.56, 42,576.96 and 11,752.20 is: 17,617.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,402.56 : 42,576.96 = 11,752.20 : x
  2. Step 2: Convert to fraction form
    28,402.56/42,576.96 = 11,752.20/x
  3. Step 3: Cross multiply
    28,402.56x = 42,576.96 × 11,752.20
  4. Step 4: Simplify right side
    28,402.56x = 500,372,949.31
  5. Step 5: Solve for x
    x = 500,372,949.31/28,402.56
  6. Step 6: Final answer
    x = 17,617.18

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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.