Home / 27,885.28-38,479.32-15,946.68

Finding the Fourth Proportional to 27,885.28, 38,479.32 and 15,946.68

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Solution

The fourth proportional to 27,885.28, 38,479.32 and 15,946.68 is: 22,005.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,885.28 : 38,479.32 = 15,946.68 : x
  2. Step 2: Convert to fraction form
    27,885.28/38,479.32 = 15,946.68/x
  3. Step 3: Cross multiply
    27,885.28x = 38,479.32 × 15,946.68
  4. Step 4: Simplify right side
    27,885.28x = 613,617,402.66
  5. Step 5: Solve for x
    x = 613,617,402.66/27,885.28
  6. Step 6: Final answer
    x = 22,005.07

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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.