Home / 27,895.70-38,496.05-15,320.45

Finding the Fourth Proportional to 27,895.70, 38,496.05 and 15,320.45

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Solution

The fourth proportional to 27,895.70, 38,496.05 and 15,320.45 is: 21,142.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,895.70 : 38,496.05 = 15,320.45 : x
  2. Step 2: Convert to fraction form
    27,895.70/38,496.05 = 15,320.45/x
  3. Step 3: Cross multiply
    27,895.70x = 38,496.05 × 15,320.45
  4. Step 4: Simplify right side
    27,895.70x = 589,776,540.14
  5. Step 5: Solve for x
    x = 589,776,540.14/27,895.70
  6. Step 6: Final answer
    x = 21,142.21

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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.