Home / 28,711.65-39,641.40-25,677.32

Finding the Fourth Proportional to 28,711.65, 39,641.40 and 25,677.32

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Solution

The fourth proportional to 28,711.65, 39,641.40 and 25,677.32 is: 35,451.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,711.65 : 39,641.40 = 25,677.32 : x
  2. Step 2: Convert to fraction form
    28,711.65/39,641.40 = 25,677.32/x
  3. Step 3: Cross multiply
    28,711.65x = 39,641.40 × 25,677.32
  4. Step 4: Simplify right side
    28,711.65x = 1,017,885,012.15
  5. Step 5: Solve for x
    x = 1,017,885,012.15/28,711.65
  6. Step 6: Final answer
    x = 35,451.99

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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.