Home / 31,548.08-47,263.80-15,928.40

Finding the Fourth Proportional to 31,548.08, 47,263.80 and 15,928.40

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Solution

The fourth proportional to 31,548.08, 47,263.80 and 15,928.40 is: 23,863.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,548.08 : 47,263.80 = 15,928.40 : x
  2. Step 2: Convert to fraction form
    31,548.08/47,263.80 = 15,928.40/x
  3. Step 3: Cross multiply
    31,548.08x = 47,263.80 × 15,928.40
  4. Step 4: Simplify right side
    31,548.08x = 752,836,711.92
  5. Step 5: Solve for x
    x = 752,836,711.92/31,548.08
  6. Step 6: Final answer
    x = 23,863.15

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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.