Home / 31,820.53-47,741.16-15,178.39

Finding the Fourth Proportional to 31,820.53, 47,741.16 and 15,178.39

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Solution

The fourth proportional to 31,820.53, 47,741.16 and 15,178.39 is: 22,772.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,820.53 : 47,741.16 = 15,178.39 : x
  2. Step 2: Convert to fraction form
    31,820.53/47,741.16 = 15,178.39/x
  3. Step 3: Cross multiply
    31,820.53x = 47,741.16 × 15,178.39
  4. Step 4: Simplify right side
    31,820.53x = 724,633,945.53
  5. Step 5: Solve for x
    x = 724,633,945.53/31,820.53
  6. Step 6: Final answer
    x = 22,772.53

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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.