Home / 31,440.09-47,150.13-10,376.21

Finding the Fourth Proportional to 31,440.09, 47,150.13 and 10,376.21

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Solution

The fourth proportional to 31,440.09, 47,150.13 and 10,376.21 is: 15,561.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,440.09 : 47,150.13 = 10,376.21 : x
  2. Step 2: Convert to fraction form
    31,440.09/47,150.13 = 10,376.21/x
  3. Step 3: Cross multiply
    31,440.09x = 47,150.13 × 10,376.21
  4. Step 4: Simplify right side
    31,440.09x = 489,239,414.66
  5. Step 5: Solve for x
    x = 489,239,414.66/31,440.09
  6. Step 6: Final answer
    x = 15,561.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.