Home / 28,738.80-42,854.40-25,243.11

Finding the Fourth Proportional to 28,738.80, 42,854.40 and 25,243.11

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Solution

The fourth proportional to 28,738.80, 42,854.40 and 25,243.11 is: 37,641.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,738.80 : 42,854.40 = 25,243.11 : x
  2. Step 2: Convert to fraction form
    28,738.80/42,854.40 = 25,243.11/x
  3. Step 3: Cross multiply
    28,738.80x = 42,854.40 × 25,243.11
  4. Step 4: Simplify right side
    28,738.80x = 1,081,778,333.18
  5. Step 5: Solve for x
    x = 1,081,778,333.18/28,738.80
  6. Step 6: Final answer
    x = 37,641.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.