Home / 38,172.52-52,678.21-21,177.10

Finding the Fourth Proportional to 38,172.52, 52,678.21 and 21,177.10

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Solution

The fourth proportional to 38,172.52, 52,678.21 and 21,177.10 is: 29,224.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,172.52 : 52,678.21 = 21,177.10 : x
  2. Step 2: Convert to fraction form
    38,172.52/52,678.21 = 21,177.10/x
  3. Step 3: Cross multiply
    38,172.52x = 52,678.21 × 21,177.10
  4. Step 4: Simplify right side
    38,172.52x = 1,115,571,720.99
  5. Step 5: Solve for x
    x = 1,115,571,720.99/38,172.52
  6. Step 6: Final answer
    x = 29,224.47

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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.