Home / 39,721.54-54,802.02-25,389.76

Finding the Fourth Proportional to 39,721.54, 54,802.02 and 25,389.76

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Solution

The fourth proportional to 39,721.54, 54,802.02 and 25,389.76 is: 35,029.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,721.54 : 54,802.02 = 25,389.76 : x
  2. Step 2: Convert to fraction form
    39,721.54/54,802.02 = 25,389.76/x
  3. Step 3: Cross multiply
    39,721.54x = 54,802.02 × 25,389.76
  4. Step 4: Simplify right side
    39,721.54x = 1,391,410,135.32
  5. Step 5: Solve for x
    x = 1,391,410,135.32/39,721.54
  6. Step 6: Final answer
    x = 35,029.11

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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.