Home / 27,011.55-37,275.19-15,680.40

Finding the Fourth Proportional to 27,011.55, 37,275.19 and 15,680.40

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Solution

The fourth proportional to 27,011.55, 37,275.19 and 15,680.40 is: 21,638.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,011.55 : 37,275.19 = 15,680.40 : x
  2. Step 2: Convert to fraction form
    27,011.55/37,275.19 = 15,680.40/x
  3. Step 3: Cross multiply
    27,011.55x = 37,275.19 × 15,680.40
  4. Step 4: Simplify right side
    27,011.55x = 584,489,889.28
  5. Step 5: Solve for x
    x = 584,489,889.28/27,011.55
  6. Step 6: Final answer
    x = 21,638.52

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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.