Home / 31,962.40-47,900.40-28,247.20

Finding the Fourth Proportional to 31,962.40, 47,900.40 and 28,247.20

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Solution

The fourth proportional to 31,962.40, 47,900.40 and 28,247.20 is: 42,332.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,962.40 : 47,900.40 = 28,247.20 : x
  2. Step 2: Convert to fraction form
    31,962.40/47,900.40 = 28,247.20/x
  3. Step 3: Cross multiply
    31,962.40x = 47,900.40 × 28,247.20
  4. Step 4: Simplify right side
    31,962.40x = 1,353,052,178.88
  5. Step 5: Solve for x
    x = 1,353,052,178.88/31,962.40
  6. Step 6: Final answer
    x = 42,332.62

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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.