Home / 25,165.08-34,726.86-13,987.80

Finding the Fourth Proportional to 25,165.08, 34,726.86 and 13,987.80

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Solution

The fourth proportional to 25,165.08, 34,726.86 and 13,987.80 is: 19,302.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,165.08 : 34,726.86 = 13,987.80 : x
  2. Step 2: Convert to fraction form
    25,165.08/34,726.86 = 13,987.80/x
  3. Step 3: Cross multiply
    25,165.08x = 34,726.86 × 13,987.80
  4. Step 4: Simplify right side
    25,165.08x = 485,752,372.31
  5. Step 5: Solve for x
    x = 485,752,372.31/25,165.08
  6. Step 6: Final answer
    x = 19,302.64

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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.