Home / 28,150.75-38,848.40-15,575.23

Finding the Fourth Proportional to 28,150.75, 38,848.40 and 15,575.23

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Solution

The fourth proportional to 28,150.75, 38,848.40 and 15,575.23 is: 21,494.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,150.75 : 38,848.40 = 15,575.23 : x
  2. Step 2: Convert to fraction form
    28,150.75/38,848.40 = 15,575.23/x
  3. Step 3: Cross multiply
    28,150.75x = 38,848.40 × 15,575.23
  4. Step 4: Simplify right side
    28,150.75x = 605,072,765.13
  5. Step 5: Solve for x
    x = 605,072,765.13/28,150.75
  6. Step 6: Final answer
    x = 21,494.02

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Half scale
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Double scale
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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.