Home / 27,724-38,259.39-15,148.75

Finding the Fourth Proportional to 27,724, 38,259.39 and 15,148.75

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Solution

The fourth proportional to 27,724, 38,259.39 and 15,148.75 is: 20,905.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,724 : 38,259.39 = 15,148.75 : x
  2. Step 2: Convert to fraction form
    27,724/38,259.39 = 15,148.75/x
  3. Step 3: Cross multiply
    27,724x = 38,259.39 × 15,148.75
  4. Step 4: Simplify right side
    27,724x = 579,581,934.26
  5. Step 5: Solve for x
    x = 579,581,934.26/27,724
  6. Step 6: Final answer
    x = 20,905.42

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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.