Home / 27,622.83-38,119.59-15,685.39

Finding the Fourth Proportional to 27,622.83, 38,119.59 and 15,685.39

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Solution

The fourth proportional to 27,622.83, 38,119.59 and 15,685.39 is: 21,645.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,622.83 : 38,119.59 = 15,685.39 : x
  2. Step 2: Convert to fraction form
    27,622.83/38,119.59 = 15,685.39/x
  3. Step 3: Cross multiply
    27,622.83x = 38,119.59 × 15,685.39
  4. Step 4: Simplify right side
    27,622.83x = 597,920,557.36
  5. Step 5: Solve for x
    x = 597,920,557.36/27,622.83
  6. Step 6: Final answer
    x = 21,645.89

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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.