Home / 27,980.07-38,612.03-16,042.69

Finding the Fourth Proportional to 27,980.07, 38,612.03 and 16,042.69

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Solution

The fourth proportional to 27,980.07, 38,612.03 and 16,042.69 is: 22,138.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,980.07 : 38,612.03 = 16,042.69 : x
  2. Step 2: Convert to fraction form
    27,980.07/38,612.03 = 16,042.69/x
  3. Step 3: Cross multiply
    27,980.07x = 38,612.03 × 16,042.69
  4. Step 4: Simplify right side
    27,980.07x = 619,440,795.61
  5. Step 5: Solve for x
    x = 619,440,795.61/27,980.07
  6. Step 6: Final answer
    x = 22,138.65

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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.