Home / 27,881.04-38,478.56-15,946.12

Finding the Fourth Proportional to 27,881.04, 38,478.56 and 15,946.12

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Solution

The fourth proportional to 27,881.04, 38,478.56 and 15,946.12 is: 22,007.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,881.04 : 38,478.56 = 15,946.12 : x
  2. Step 2: Convert to fraction form
    27,881.04/38,478.56 = 15,946.12/x
  3. Step 3: Cross multiply
    27,881.04x = 38,478.56 × 15,946.12
  4. Step 4: Simplify right side
    27,881.04x = 613,583,735.19
  5. Step 5: Solve for x
    x = 613,583,735.19/27,881.04
  6. Step 6: Final answer
    x = 22,007.20

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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.