Home / 27,917.92-38,526.28-15,342.40

Finding the Fourth Proportional to 27,917.92, 38,526.28 and 15,342.40

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Solution

The fourth proportional to 27,917.92, 38,526.28 and 15,342.40 is: 21,172.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,917.92 : 38,526.28 = 15,342.40 : x
  2. Step 2: Convert to fraction form
    27,917.92/38,526.28 = 15,342.40/x
  3. Step 3: Cross multiply
    27,917.92x = 38,526.28 × 15,342.40
  4. Step 4: Simplify right side
    27,917.92x = 591,085,598.27
  5. Step 5: Solve for x
    x = 591,085,598.27/27,917.92
  6. Step 6: Final answer
    x = 21,172.26

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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.