Home / 26,220.48-39,278.88-19,654.08

Finding the Fourth Proportional to 26,220.48, 39,278.88 and 19,654.08

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Solution

The fourth proportional to 26,220.48, 39,278.88 and 19,654.08 is: 29,442.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,220.48 : 39,278.88 = 19,654.08 : x
  2. Step 2: Convert to fraction form
    26,220.48/39,278.88 = 19,654.08/x
  3. Step 3: Cross multiply
    26,220.48x = 39,278.88 × 19,654.08
  4. Step 4: Simplify right side
    26,220.48x = 771,990,249.83
  5. Step 5: Solve for x
    x = 771,990,249.83/26,220.48
  6. Step 6: Final answer
    x = 29,442.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.