Home / 27,884.04-38,480.04-15,309.60

Finding the Fourth Proportional to 27,884.04, 38,480.04 and 15,309.60

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Solution

The fourth proportional to 27,884.04, 38,480.04 and 15,309.60 is: 21,127.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,884.04 : 38,480.04 = 15,309.60 : x
  2. Step 2: Convert to fraction form
    27,884.04/38,480.04 = 15,309.60/x
  3. Step 3: Cross multiply
    27,884.04x = 38,480.04 × 15,309.60
  4. Step 4: Simplify right side
    27,884.04x = 589,114,020.38
  5. Step 5: Solve for x
    x = 589,114,020.38/27,884.04
  6. Step 6: Final answer
    x = 21,127.28

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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.