Home / 31,452.95-43,400.13-18,021.62

Finding the Fourth Proportional to 31,452.95, 43,400.13 and 18,021.62

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Solution

The fourth proportional to 31,452.95, 43,400.13 and 18,021.62 is: 24,867.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,452.95 : 43,400.13 = 18,021.62 : x
  2. Step 2: Convert to fraction form
    31,452.95/43,400.13 = 18,021.62/x
  3. Step 3: Cross multiply
    31,452.95x = 43,400.13 × 18,021.62
  4. Step 4: Simplify right side
    31,452.95x = 782,140,650.81
  5. Step 5: Solve for x
    x = 782,140,650.81/31,452.95
  6. Step 6: Final answer
    x = 24,867.00

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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.