Home / 39,198.71-54,094.59-21,294.06

Finding the Fourth Proportional to 39,198.71, 54,094.59 and 21,294.06

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Solution

The fourth proportional to 39,198.71, 54,094.59 and 21,294.06 is: 29,386.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,198.71 : 54,094.59 = 21,294.06 : x
  2. Step 2: Convert to fraction form
    39,198.71/54,094.59 = 21,294.06/x
  3. Step 3: Cross multiply
    39,198.71x = 54,094.59 × 21,294.06
  4. Step 4: Simplify right side
    39,198.71x = 1,151,893,445.14
  5. Step 5: Solve for x
    x = 1,151,893,445.14/39,198.71
  6. Step 6: Final answer
    x = 29,386.01

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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.