Home / 29,624.56-40,812.40-20,655.76

Finding the Fourth Proportional to 29,624.56, 40,812.40 and 20,655.76

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Solution

The fourth proportional to 29,624.56, 40,812.40 and 20,655.76 is: 28,456.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,624.56 : 40,812.40 = 20,655.76 : x
  2. Step 2: Convert to fraction form
    29,624.56/40,812.40 = 20,655.76/x
  3. Step 3: Cross multiply
    29,624.56x = 40,812.40 × 20,655.76
  4. Step 4: Simplify right side
    29,624.56x = 843,011,139.42
  5. Step 5: Solve for x
    x = 843,011,139.42/29,624.56
  6. Step 6: Final answer
    x = 28,456.49

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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.