Home / 27,720.96-38,295.40-23,988.48

Finding the Fourth Proportional to 27,720.96, 38,295.40 and 23,988.48

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Solution

The fourth proportional to 27,720.96, 38,295.40 and 23,988.48 is: 33,139.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,720.96 : 38,295.40 = 23,988.48 : x
  2. Step 2: Convert to fraction form
    27,720.96/38,295.40 = 23,988.48/x
  3. Step 3: Cross multiply
    27,720.96x = 38,295.40 × 23,988.48
  4. Step 4: Simplify right side
    27,720.96x = 918,648,436.99
  5. Step 5: Solve for x
    x = 918,648,436.99/27,720.96
  6. Step 6: Final answer
    x = 33,139.13

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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.