Home / 29,453.72-40,656.12-18,123.68

Finding the Fourth Proportional to 29,453.72, 40,656.12 and 18,123.68

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Solution

The fourth proportional to 29,453.72, 40,656.12 and 18,123.68 is: 25,016.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,453.72 : 40,656.12 = 18,123.68 : x
  2. Step 2: Convert to fraction form
    29,453.72/40,656.12 = 18,123.68/x
  3. Step 3: Cross multiply
    29,453.72x = 40,656.12 × 18,123.68
  4. Step 4: Simplify right side
    29,453.72x = 736,838,305.64
  5. Step 5: Solve for x
    x = 736,838,305.64/29,453.72
  6. Step 6: Final answer
    x = 25,016.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.