Home / 31,543.20-47,313.78-12,817.74

Finding the Fourth Proportional to 31,543.20, 47,313.78 and 12,817.74

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Solution

The fourth proportional to 31,543.20, 47,313.78 and 12,817.74 is: 19,226.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,543.20 : 47,313.78 = 12,817.74 : x
  2. Step 2: Convert to fraction form
    31,543.20/47,313.78 = 12,817.74/x
  3. Step 3: Cross multiply
    31,543.20x = 47,313.78 × 12,817.74
  4. Step 4: Simplify right side
    31,543.20x = 606,455,730.46
  5. Step 5: Solve for x
    x = 606,455,730.46/31,543.20
  6. Step 6: Final answer
    x = 19,226.20

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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.