Home / 27,608.65-38,089.93-15,665.07

Finding the Fourth Proportional to 27,608.65, 38,089.93 and 15,665.07

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Solution

The fourth proportional to 27,608.65, 38,089.93 and 15,665.07 is: 21,612.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,608.65 : 38,089.93 = 15,665.07 : x
  2. Step 2: Convert to fraction form
    27,608.65/38,089.93 = 15,665.07/x
  3. Step 3: Cross multiply
    27,608.65x = 38,089.93 × 15,665.07
  4. Step 4: Simplify right side
    27,608.65x = 596,681,150.97
  5. Step 5: Solve for x
    x = 596,681,150.97/27,608.65
  6. Step 6: Final answer
    x = 21,612.11

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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.