Home / 27,814.92-38,387.31-15,880.05

Finding the Fourth Proportional to 27,814.92, 38,387.31 and 15,880.05

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Solution

The fourth proportional to 27,814.92, 38,387.31 and 15,880.05 is: 21,916.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,814.92 : 38,387.31 = 15,880.05 : x
  2. Step 2: Convert to fraction form
    27,814.92/38,387.31 = 15,880.05/x
  3. Step 3: Cross multiply
    27,814.92x = 38,387.31 × 15,880.05
  4. Step 4: Simplify right side
    27,814.92x = 609,592,402.17
  5. Step 5: Solve for x
    x = 609,592,402.17/27,814.92
  6. Step 6: Final answer
    x = 21,916.02

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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.