Home / 30,945.36-42,701.28-17,514.48

Finding the Fourth Proportional to 30,945.36, 42,701.28 and 17,514.48

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Solution

The fourth proportional to 30,945.36, 42,701.28 and 17,514.48 is: 24,168.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,945.36 : 42,701.28 = 17,514.48 : x
  2. Step 2: Convert to fraction form
    30,945.36/42,701.28 = 17,514.48/x
  3. Step 3: Cross multiply
    30,945.36x = 42,701.28 × 17,514.48
  4. Step 4: Simplify right side
    30,945.36x = 747,890,714.53
  5. Step 5: Solve for x
    x = 747,890,714.53/30,945.36
  6. Step 6: Final answer
    x = 24,168.11

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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.