Home / 28,250.64-38,987.01-15,504.27

Finding the Fourth Proportional to 28,250.64, 38,987.01 and 15,504.27

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Solution

The fourth proportional to 28,250.64, 38,987.01 and 15,504.27 is: 21,396.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,250.64 : 38,987.01 = 15,504.27 : x
  2. Step 2: Convert to fraction form
    28,250.64/38,987.01 = 15,504.27/x
  3. Step 3: Cross multiply
    28,250.64x = 38,987.01 × 15,504.27
  4. Step 4: Simplify right side
    28,250.64x = 604,465,129.53
  5. Step 5: Solve for x
    x = 604,465,129.53/28,250.64
  6. Step 6: Final answer
    x = 21,396.51

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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.