Home / 29,139.04-43,708.56-12,488.32

Finding the Fourth Proportional to 29,139.04, 43,708.56 and 12,488.32

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Solution

The fourth proportional to 29,139.04, 43,708.56 and 12,488.32 is: 18,732.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,139.04 : 43,708.56 = 12,488.32 : x
  2. Step 2: Convert to fraction form
    29,139.04/43,708.56 = 12,488.32/x
  3. Step 3: Cross multiply
    29,139.04x = 43,708.56 × 12,488.32
  4. Step 4: Simplify right side
    29,139.04x = 545,846,484.02
  5. Step 5: Solve for x
    x = 545,846,484.02/29,139.04
  6. Step 6: Final answer
    x = 18,732.48

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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.