Home / 31,406.45-47,325.65-25,981.65

Finding the Fourth Proportional to 31,406.45, 47,325.65 and 25,981.65

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Solution

The fourth proportional to 31,406.45, 47,325.65 and 25,981.65 is: 39,151.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,406.45 : 47,325.65 = 25,981.65 : x
  2. Step 2: Convert to fraction form
    31,406.45/47,325.65 = 25,981.65/x
  3. Step 3: Cross multiply
    31,406.45x = 47,325.65 × 25,981.65
  4. Step 4: Simplify right side
    31,406.45x = 1,229,598,344.41
  5. Step 5: Solve for x
    x = 1,229,598,344.41/31,406.45
  6. Step 6: Final answer
    x = 39,151.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.