Home / 30,543.09-42,149.45-17,114.46

Finding the Fourth Proportional to 30,543.09, 42,149.45 and 17,114.46

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Solution

The fourth proportional to 30,543.09, 42,149.45 and 17,114.46 is: 23,617.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,543.09 : 42,149.45 = 17,114.46 : x
  2. Step 2: Convert to fraction form
    30,543.09/42,149.45 = 17,114.46/x
  3. Step 3: Cross multiply
    30,543.09x = 42,149.45 × 17,114.46
  4. Step 4: Simplify right side
    30,543.09x = 721,364,864.50
  5. Step 5: Solve for x
    x = 721,364,864.50/30,543.09
  6. Step 6: Final answer
    x = 23,617.94

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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.