Home / 40,089.74-55,266.10-28,115.91

Finding the Fourth Proportional to 40,089.74, 55,266.10 and 28,115.91

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Solution

The fourth proportional to 40,089.74, 55,266.10 and 28,115.91 is: 38,759.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,089.74 : 55,266.10 = 28,115.91 : x
  2. Step 2: Convert to fraction form
    40,089.74/55,266.10 = 28,115.91/x
  3. Step 3: Cross multiply
    40,089.74x = 55,266.10 × 28,115.91
  4. Step 4: Simplify right side
    40,089.74x = 1,553,856,623.36
  5. Step 5: Solve for x
    x = 1,553,856,623.36/40,089.74
  6. Step 6: Final answer
    x = 38,759.46

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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.