Home / 27,580.65-38,060.18-15,643.73

Finding the Fourth Proportional to 27,580.65, 38,060.18 and 15,643.73

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Solution

The fourth proportional to 27,580.65, 38,060.18 and 15,643.73 is: 21,587.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,580.65 : 38,060.18 = 15,643.73 : x
  2. Step 2: Convert to fraction form
    27,580.65/38,060.18 = 15,643.73/x
  3. Step 3: Cross multiply
    27,580.65x = 38,060.18 × 15,643.73
  4. Step 4: Simplify right side
    27,580.65x = 595,403,255.27
  5. Step 5: Solve for x
    x = 595,403,255.27/27,580.65
  6. Step 6: Final answer
    x = 21,587.72

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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.