Home / 27,755.18-38,299.83-15,655.00

Finding the Fourth Proportional to 27,755.18, 38,299.83 and 15,655.00

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Solution

The fourth proportional to 27,755.18, 38,299.83 and 15,655.00 is: 21,602.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,755.18 : 38,299.83 = 15,655.00 : x
  2. Step 2: Convert to fraction form
    27,755.18/38,299.83 = 15,655.00/x
  3. Step 3: Cross multiply
    27,755.18x = 38,299.83 × 15,655.00
  4. Step 4: Simplify right side
    27,755.18x = 599,583,686.29
  5. Step 5: Solve for x
    x = 599,583,686.29/27,755.18
  6. Step 6: Final answer
    x = 21,602.59

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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.