Home / 27,916.36-38,523.90-15,978.94

Finding the Fourth Proportional to 27,916.36, 38,523.90 and 15,978.94

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Solution

The fourth proportional to 27,916.36, 38,523.90 and 15,978.94 is: 22,050.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,916.36 : 38,523.90 = 15,978.94 : x
  2. Step 2: Convert to fraction form
    27,916.36/38,523.90 = 15,978.94/x
  3. Step 3: Cross multiply
    27,916.36x = 38,523.90 × 15,978.94
  4. Step 4: Simplify right side
    27,916.36x = 615,571,086.67
  5. Step 5: Solve for x
    x = 615,571,086.67/27,916.36
  6. Step 6: Final answer
    x = 22,050.55

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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.