Home / 31,447.58-47,158.68-12,724.16

Finding the Fourth Proportional to 31,447.58, 47,158.68 and 12,724.16

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Solution

The fourth proportional to 31,447.58, 47,158.68 and 12,724.16 is: 19,081.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,447.58 : 47,158.68 = 12,724.16 : x
  2. Step 2: Convert to fraction form
    31,447.58/47,158.68 = 12,724.16/x
  3. Step 3: Cross multiply
    31,447.58x = 47,158.68 × 12,724.16
  4. Step 4: Simplify right side
    31,447.58x = 600,054,589.71
  5. Step 5: Solve for x
    x = 600,054,589.71/31,447.58
  6. Step 6: Final answer
    x = 19,081.11

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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.