Home / 25,981.38-35,854.65-15,370.74

Finding the Fourth Proportional to 25,981.38, 35,854.65 and 15,370.74

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Solution

The fourth proportional to 25,981.38, 35,854.65 and 15,370.74 is: 21,211.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,981.38 : 35,854.65 = 15,370.74 : x
  2. Step 2: Convert to fraction form
    25,981.38/35,854.65 = 15,370.74/x
  3. Step 3: Cross multiply
    25,981.38x = 35,854.65 × 15,370.74
  4. Step 4: Simplify right side
    25,981.38x = 551,112,502.94
  5. Step 5: Solve for x
    x = 551,112,502.94/25,981.38
  6. Step 6: Final answer
    x = 21,211.83

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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.