Home / 48,278.13-72,417.29-20,576.13

Finding the Fourth Proportional to 48,278.13, 72,417.29 and 20,576.13

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Solution

The fourth proportional to 48,278.13, 72,417.29 and 20,576.13 is: 30,864.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,278.13 : 72,417.29 = 20,576.13 : x
  2. Step 2: Convert to fraction form
    48,278.13/72,417.29 = 20,576.13/x
  3. Step 3: Cross multiply
    48,278.13x = 72,417.29 × 20,576.13
  4. Step 4: Simplify right side
    48,278.13x = 1,490,067,573.29
  5. Step 5: Solve for x
    x = 1,490,067,573.29/48,278.13
  6. Step 6: Final answer
    x = 30,864.24

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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.