Home / 25,316.87-34,937.11-13,987.10

Finding the Fourth Proportional to 25,316.87, 34,937.11 and 13,987.10

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Solution

The fourth proportional to 25,316.87, 34,937.11 and 13,987.10 is: 19,302.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,316.87 : 34,937.11 = 13,987.10 : x
  2. Step 2: Convert to fraction form
    25,316.87/34,937.11 = 13,987.10/x
  3. Step 3: Cross multiply
    25,316.87x = 34,937.11 × 13,987.10
  4. Step 4: Simplify right side
    25,316.87x = 488,668,676.60
  5. Step 5: Solve for x
    x = 488,668,676.60/25,316.87
  6. Step 6: Final answer
    x = 19,302.10

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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.