Home / 31,489.56-47,200.32-15,908.40

Finding the Fourth Proportional to 31,489.56, 47,200.32 and 15,908.40

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Solution

The fourth proportional to 31,489.56, 47,200.32 and 15,908.40 is: 23,845.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,489.56 : 47,200.32 = 15,908.40 : x
  2. Step 2: Convert to fraction form
    31,489.56/47,200.32 = 15,908.40/x
  3. Step 3: Cross multiply
    31,489.56x = 47,200.32 × 15,908.40
  4. Step 4: Simplify right side
    31,489.56x = 750,881,570.69
  5. Step 5: Solve for x
    x = 750,881,570.69/31,489.56
  6. Step 6: Final answer
    x = 23,845.41

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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.