Home / 27,903.84-38,508.66-15,328.86

Finding the Fourth Proportional to 27,903.84, 38,508.66 and 15,328.86

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Solution

The fourth proportional to 27,903.84, 38,508.66 and 15,328.86 is: 21,154.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,903.84 : 38,508.66 = 15,328.86 : x
  2. Step 2: Convert to fraction form
    27,903.84/38,508.66 = 15,328.86/x
  3. Step 3: Cross multiply
    27,903.84x = 38,508.66 × 15,328.86
  4. Step 4: Simplify right side
    27,903.84x = 590,293,857.93
  5. Step 5: Solve for x
    x = 590,293,857.93/27,903.84
  6. Step 6: Final answer
    x = 21,154.57

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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.