Home / 38,728.36-58,080.38-12,427.25

Finding the Fourth Proportional to 38,728.36, 58,080.38 and 12,427.25

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Solution

The fourth proportional to 38,728.36, 58,080.38 and 12,427.25 is: 18,636.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,728.36 : 58,080.38 = 12,427.25 : x
  2. Step 2: Convert to fraction form
    38,728.36/58,080.38 = 12,427.25/x
  3. Step 3: Cross multiply
    38,728.36x = 58,080.38 × 12,427.25
  4. Step 4: Simplify right side
    38,728.36x = 721,779,402.36
  5. Step 5: Solve for x
    x = 721,779,402.36/38,728.36
  6. Step 6: Final answer
    x = 18,636.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.