Home / 42,313.74-63,457.80-12,723.72

Finding the Fourth Proportional to 42,313.74, 63,457.80 and 12,723.72

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Solution

The fourth proportional to 42,313.74, 63,457.80 and 12,723.72 is: 19,081.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,313.74 : 63,457.80 = 12,723.72 : x
  2. Step 2: Convert to fraction form
    42,313.74/63,457.80 = 12,723.72/x
  3. Step 3: Cross multiply
    42,313.74x = 63,457.80 × 12,723.72
  4. Step 4: Simplify right side
    42,313.74x = 807,419,279.02
  5. Step 5: Solve for x
    x = 807,419,279.02/42,313.74
  6. Step 6: Final answer
    x = 19,081.73

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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.