Home / 40,410.58-55,712.23-28,294.76

Finding the Fourth Proportional to 40,410.58, 55,712.23 and 28,294.76

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Solution

The fourth proportional to 40,410.58, 55,712.23 and 28,294.76 is: 39,008.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,410.58 : 55,712.23 = 28,294.76 : x
  2. Step 2: Convert to fraction form
    40,410.58/55,712.23 = 28,294.76/x
  3. Step 3: Cross multiply
    40,410.58x = 55,712.23 × 28,294.76
  4. Step 4: Simplify right side
    40,410.58x = 1,576,364,176.91
  5. Step 5: Solve for x
    x = 1,576,364,176.91/40,410.58
  6. Step 6: Final answer
    x = 39,008.70

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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.