Home / 38,943.04-53,741.36-21,279.04

Finding the Fourth Proportional to 38,943.04, 53,741.36 and 21,279.04

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Solution

The fourth proportional to 38,943.04, 53,741.36 and 21,279.04 is: 29,365.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,943.04 : 53,741.36 = 21,279.04 : x
  2. Step 2: Convert to fraction form
    38,943.04/53,741.36 = 21,279.04/x
  3. Step 3: Cross multiply
    38,943.04x = 53,741.36 × 21,279.04
  4. Step 4: Simplify right side
    38,943.04x = 1,143,564,549.09
  5. Step 5: Solve for x
    x = 1,143,564,549.09/38,943.04
  6. Step 6: Final answer
    x = 29,365.06

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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.