Home / 31,870.06-47,789.60-19,232.84

Finding the Fourth Proportional to 31,870.06, 47,789.60 and 19,232.84

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Solution

The fourth proportional to 31,870.06, 47,789.60 and 19,232.84 is: 28,839.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,870.06 : 47,789.60 = 19,232.84 : x
  2. Step 2: Convert to fraction form
    31,870.06/47,789.60 = 19,232.84/x
  3. Step 3: Cross multiply
    31,870.06x = 47,789.60 × 19,232.84
  4. Step 4: Simplify right side
    31,870.06x = 919,129,753.77
  5. Step 5: Solve for x
    x = 919,129,753.77/31,870.06
  6. Step 6: Final answer
    x = 28,839.92

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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.