Home / 30,971.23-42,738.86-17,542.59

Finding the Fourth Proportional to 30,971.23, 42,738.86 and 17,542.59

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Solution

The fourth proportional to 30,971.23, 42,738.86 and 17,542.59 is: 24,207.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,971.23 : 42,738.86 = 17,542.59 : x
  2. Step 2: Convert to fraction form
    30,971.23/42,738.86 = 17,542.59/x
  3. Step 3: Cross multiply
    30,971.23x = 42,738.86 × 17,542.59
  4. Step 4: Simplify right side
    30,971.23x = 749,750,298.05
  5. Step 5: Solve for x
    x = 749,750,298.05/30,971.23
  6. Step 6: Final answer
    x = 24,207.96

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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.