Home / 31,543.23-47,313.81-12,817.71

Finding the Fourth Proportional to 31,543.23, 47,313.81 and 12,817.71

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Solution

The fourth proportional to 31,543.23, 47,313.81 and 12,817.71 is: 19,226.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,543.23 : 47,313.81 = 12,817.71 : x
  2. Step 2: Convert to fraction form
    31,543.23/47,313.81 = 12,817.71/x
  3. Step 3: Cross multiply
    31,543.23x = 47,313.81 × 12,817.71
  4. Step 4: Simplify right side
    31,543.23x = 606,454,695.58
  5. Step 5: Solve for x
    x = 606,454,695.58/31,543.23
  6. Step 6: Final answer
    x = 19,226.14

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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.