Home / 40,425.19-55,382.77-38,910.08

Finding the Fourth Proportional to 40,425.19, 55,382.77 and 38,910.08

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Solution

The fourth proportional to 40,425.19, 55,382.77 and 38,910.08 is: 53,307.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,425.19 : 55,382.77 = 38,910.08 : x
  2. Step 2: Convert to fraction form
    40,425.19/55,382.77 = 38,910.08/x
  3. Step 3: Cross multiply
    40,425.19x = 55,382.77 × 38,910.08
  4. Step 4: Simplify right side
    40,425.19x = 2,154,948,011.32
  5. Step 5: Solve for x
    x = 2,154,948,011.32/40,425.19
  6. Step 6: Final answer
    x = 53,307.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.