Home / 31,543.02-43,527.78-18,113.22

Finding the Fourth Proportional to 31,543.02, 43,527.78 and 18,113.22

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Solution

The fourth proportional to 31,543.02, 43,527.78 and 18,113.22 is: 24,995.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,543.02 : 43,527.78 = 18,113.22 : x
  2. Step 2: Convert to fraction form
    31,543.02/43,527.78 = 18,113.22/x
  3. Step 3: Cross multiply
    31,543.02x = 43,527.78 × 18,113.22
  4. Step 4: Simplify right side
    31,543.02x = 788,428,255.25
  5. Step 5: Solve for x
    x = 788,428,255.25/31,543.02
  6. Step 6: Final answer
    x = 24,995.33

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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.