Home / 27,953.92-38,575.60-15,378.68

Finding the Fourth Proportional to 27,953.92, 38,575.60 and 15,378.68

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Solution

The fourth proportional to 27,953.92, 38,575.60 and 15,378.68 is: 21,222.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,953.92 : 38,575.60 = 15,378.68 : x
  2. Step 2: Convert to fraction form
    27,953.92/38,575.60 = 15,378.68/x
  3. Step 3: Cross multiply
    27,953.92x = 38,575.60 × 15,378.68
  4. Step 4: Simplify right side
    27,953.92x = 593,241,808.21
  5. Step 5: Solve for x
    x = 593,241,808.21/27,953.92
  6. Step 6: Final answer
    x = 21,222.13

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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.