Home / 39,192.20-54,085.02-21,287.06

Finding the Fourth Proportional to 39,192.20, 54,085.02 and 21,287.06

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Solution

The fourth proportional to 39,192.20, 54,085.02 and 21,287.06 is: 29,376.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,192.20 : 54,085.02 = 21,287.06 : x
  2. Step 2: Convert to fraction form
    39,192.20/54,085.02 = 21,287.06/x
  3. Step 3: Cross multiply
    39,192.20x = 54,085.02 × 21,287.06
  4. Step 4: Simplify right side
    39,192.20x = 1,151,311,065.84
  5. Step 5: Solve for x
    x = 1,151,311,065.84/39,192.20
  6. Step 6: Final answer
    x = 29,376.03

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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.