Home / 38,492-53,129.76-25,769.60

Finding the Fourth Proportional to 38,492, 53,129.76 and 25,769.60

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Solution

The fourth proportional to 38,492, 53,129.76 and 25,769.60 is: 35,569.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,492 : 53,129.76 = 25,769.60 : x
  2. Step 2: Convert to fraction form
    38,492/53,129.76 = 25,769.60/x
  3. Step 3: Cross multiply
    38,492x = 53,129.76 × 25,769.60
  4. Step 4: Simplify right side
    38,492x = 1,369,132,663.30
  5. Step 5: Solve for x
    x = 1,369,132,663.30/38,492
  6. Step 6: Final answer
    x = 35,569.28

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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.