Home / 30,975.57-42,745.95-17,543.75

Finding the Fourth Proportional to 30,975.57, 42,745.95 and 17,543.75

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Solution

The fourth proportional to 30,975.57, 42,745.95 and 17,543.75 is: 24,210.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,975.57 : 42,745.95 = 17,543.75 : x
  2. Step 2: Convert to fraction form
    30,975.57/42,745.95 = 17,543.75/x
  3. Step 3: Cross multiply
    30,975.57x = 42,745.95 × 17,543.75
  4. Step 4: Simplify right side
    30,975.57x = 749,924,046.58
  5. Step 5: Solve for x
    x = 749,924,046.58/30,975.57
  6. Step 6: Final answer
    x = 24,210.18

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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.