Home / 25,111.35-34,654.02-13,780.65

Finding the Fourth Proportional to 25,111.35, 34,654.02 and 13,780.65

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Solution

The fourth proportional to 25,111.35, 34,654.02 and 13,780.65 is: 19,017.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,111.35 : 34,654.02 = 13,780.65 : x
  2. Step 2: Convert to fraction form
    25,111.35/34,654.02 = 13,780.65/x
  3. Step 3: Cross multiply
    25,111.35x = 34,654.02 × 13,780.65
  4. Step 4: Simplify right side
    25,111.35x = 477,554,920.71
  5. Step 5: Solve for x
    x = 477,554,920.71/25,111.35
  6. Step 6: Final answer
    x = 19,017.49

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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.