Home / 38,347.18-52,918.68-21,351.05

Finding the Fourth Proportional to 38,347.18, 52,918.68 and 21,351.05

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Solution

The fourth proportional to 38,347.18, 52,918.68 and 21,351.05 is: 29,464.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,347.18 : 52,918.68 = 21,351.05 : x
  2. Step 2: Convert to fraction form
    38,347.18/52,918.68 = 21,351.05/x
  3. Step 3: Cross multiply
    38,347.18x = 52,918.68 × 21,351.05
  4. Step 4: Simplify right side
    38,347.18x = 1,129,869,514.91
  5. Step 5: Solve for x
    x = 1,129,869,514.91/38,347.18
  6. Step 6: Final answer
    x = 29,464.22

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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.