Home / 27,249.80-37,602.40-15,312.20

Finding the Fourth Proportional to 27,249.80, 37,602.40 and 15,312.20

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Solution

The fourth proportional to 27,249.80, 37,602.40 and 15,312.20 is: 21,129.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,249.80 : 37,602.40 = 15,312.20 : x
  2. Step 2: Convert to fraction form
    27,249.80/37,602.40 = 15,312.20/x
  3. Step 3: Cross multiply
    27,249.80x = 37,602.40 × 15,312.20
  4. Step 4: Simplify right side
    27,249.80x = 575,775,469.28
  5. Step 5: Solve for x
    x = 575,775,469.28/27,249.80
  6. Step 6: Final answer
    x = 21,129.53

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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.