Home / 31,430.15-43,372.49-17,282.87

Finding the Fourth Proportional to 31,430.15, 43,372.49 and 17,282.87

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Solution

The fourth proportional to 31,430.15, 43,372.49 and 17,282.87 is: 23,849.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,430.15 : 43,372.49 = 17,282.87 : x
  2. Step 2: Convert to fraction form
    31,430.15/43,372.49 = 17,282.87/x
  3. Step 3: Cross multiply
    31,430.15x = 43,372.49 × 17,282.87
  4. Step 4: Simplify right side
    31,430.15x = 749,601,019.83
  5. Step 5: Solve for x
    x = 749,601,019.83/31,430.15
  6. Step 6: Final answer
    x = 23,849.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.