Home / 31,687.08-47,546.40-14,152.20

Finding the Fourth Proportional to 31,687.08, 47,546.40 and 14,152.20

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Solution

The fourth proportional to 31,687.08, 47,546.40 and 14,152.20 is: 21,235.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,687.08 : 47,546.40 = 14,152.20 : x
  2. Step 2: Convert to fraction form
    31,687.08/47,546.40 = 14,152.20/x
  3. Step 3: Cross multiply
    31,687.08x = 47,546.40 × 14,152.20
  4. Step 4: Simplify right side
    31,687.08x = 672,886,162.08
  5. Step 5: Solve for x
    x = 672,886,162.08/31,687.08
  6. Step 6: Final answer
    x = 21,235.35

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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.