Home / 25,488.36-35,175.69-15,417.21

Finding the Fourth Proportional to 25,488.36, 35,175.69 and 15,417.21

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Solution

The fourth proportional to 25,488.36, 35,175.69 and 15,417.21 is: 21,276.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,488.36 : 35,175.69 = 15,417.21 : x
  2. Step 2: Convert to fraction form
    25,488.36/35,175.69 = 15,417.21/x
  3. Step 3: Cross multiply
    25,488.36x = 35,175.69 × 15,417.21
  4. Step 4: Simplify right side
    25,488.36x = 542,310,999.62
  5. Step 5: Solve for x
    x = 542,310,999.62/25,488.36
  6. Step 6: Final answer
    x = 21,276.81

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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.