Home / 30,943.86-42,703.50-17,514.87

Finding the Fourth Proportional to 30,943.86, 42,703.50 and 17,514.87

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Solution

The fourth proportional to 30,943.86, 42,703.50 and 17,514.87 is: 24,171.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,943.86 : 42,703.50 = 17,514.87 : x
  2. Step 2: Convert to fraction form
    30,943.86/42,703.50 = 17,514.87/x
  3. Step 3: Cross multiply
    30,943.86x = 42,703.50 × 17,514.87
  4. Step 4: Simplify right side
    30,943.86x = 747,946,251.05
  5. Step 5: Solve for x
    x = 747,946,251.05/30,943.86
  6. Step 6: Final answer
    x = 24,171.07

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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.