Home / 27,903.54-38,508.77-15,328.42

Finding the Fourth Proportional to 27,903.54, 38,508.77 and 15,328.42

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Solution

The fourth proportional to 27,903.54, 38,508.77 and 15,328.42 is: 21,154.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,903.54 : 38,508.77 = 15,328.42 : x
  2. Step 2: Convert to fraction form
    27,903.54/38,508.77 = 15,328.42/x
  3. Step 3: Cross multiply
    27,903.54x = 38,508.77 × 15,328.42
  4. Step 4: Simplify right side
    27,903.54x = 590,278,600.24
  5. Step 5: Solve for x
    x = 590,278,600.24/27,903.54
  6. Step 6: Final answer
    x = 21,154.25

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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.