Home / 31,440.06-47,126.07-15,858.90

Finding the Fourth Proportional to 31,440.06, 47,126.07 and 15,858.90

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Solution

The fourth proportional to 31,440.06, 47,126.07 and 15,858.90 is: 23,771.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,440.06 : 47,126.07 = 15,858.90 : x
  2. Step 2: Convert to fraction form
    31,440.06/47,126.07 = 15,858.90/x
  3. Step 3: Cross multiply
    31,440.06x = 47,126.07 × 15,858.90
  4. Step 4: Simplify right side
    31,440.06x = 747,367,631.52
  5. Step 5: Solve for x
    x = 747,367,631.52/31,440.06
  6. Step 6: Final answer
    x = 23,771.19

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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.