Home / 27,764.61-38,316.08-15,189.36

Finding the Fourth Proportional to 27,764.61, 38,316.08 and 15,189.36

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Solution

The fourth proportional to 27,764.61, 38,316.08 and 15,189.36 is: 20,961.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,764.61 : 38,316.08 = 15,189.36 : x
  2. Step 2: Convert to fraction form
    27,764.61/38,316.08 = 15,189.36/x
  3. Step 3: Cross multiply
    27,764.61x = 38,316.08 × 15,189.36
  4. Step 4: Simplify right side
    27,764.61x = 581,996,656.96
  5. Step 5: Solve for x
    x = 581,996,656.96/27,764.61
  6. Step 6: Final answer
    x = 20,961.82

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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.