Home / 28,468.71-39,305.30-25,479.36

Finding the Fourth Proportional to 28,468.71, 39,305.30 and 25,479.36

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Solution

The fourth proportional to 28,468.71, 39,305.30 and 25,479.36 is: 35,178.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,468.71 : 39,305.30 = 25,479.36 : x
  2. Step 2: Convert to fraction form
    28,468.71/39,305.30 = 25,479.36/x
  3. Step 3: Cross multiply
    28,468.71x = 39,305.30 × 25,479.36
  4. Step 4: Simplify right side
    28,468.71x = 1,001,473,761.21
  5. Step 5: Solve for x
    x = 1,001,473,761.21/28,468.71
  6. Step 6: Final answer
    x = 35,178.05

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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.