Home / 31,500.43-47,251.28-9,313.81

Finding the Fourth Proportional to 31,500.43, 47,251.28 and 9,313.81

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Solution

The fourth proportional to 31,500.43, 47,251.28 and 9,313.81 is: 13,970.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,500.43 : 47,251.28 = 9,313.81 : x
  2. Step 2: Convert to fraction form
    31,500.43/47,251.28 = 9,313.81/x
  3. Step 3: Cross multiply
    31,500.43x = 47,251.28 × 9,313.81
  4. Step 4: Simplify right side
    31,500.43x = 440,089,349.33
  5. Step 5: Solve for x
    x = 440,089,349.33/31,500.43
  6. Step 6: Final answer
    x = 13,970.90

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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.