Home / 30,972.95-42,741.19-17,543.87

Finding the Fourth Proportional to 30,972.95, 42,741.19 and 17,543.87

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Solution

The fourth proportional to 30,972.95, 42,741.19 and 17,543.87 is: 24,209.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,972.95 : 42,741.19 = 17,543.87 : x
  2. Step 2: Convert to fraction form
    30,972.95/42,741.19 = 17,543.87/x
  3. Step 3: Cross multiply
    30,972.95x = 42,741.19 × 17,543.87
  4. Step 4: Simplify right side
    30,972.95x = 749,845,881.01
  5. Step 5: Solve for x
    x = 749,845,881.01/30,972.95
  6. Step 6: Final answer
    x = 24,209.70

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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.