Home / 27,864.29-38,455.43-15,925.35

Finding the Fourth Proportional to 27,864.29, 38,455.43 and 15,925.35

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Solution

The fourth proportional to 27,864.29, 38,455.43 and 15,925.35 is: 21,978.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,864.29 : 38,455.43 = 15,925.35 : x
  2. Step 2: Convert to fraction form
    27,864.29/38,455.43 = 15,925.35/x
  3. Step 3: Cross multiply
    27,864.29x = 38,455.43 × 15,925.35
  4. Step 4: Simplify right side
    27,864.29x = 612,416,246.73
  5. Step 5: Solve for x
    x = 612,416,246.73/27,864.29
  6. Step 6: Final answer
    x = 21,978.53

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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.