Home / 27,698.40-38,223.18-15,123.15

Finding the Fourth Proportional to 27,698.40, 38,223.18 and 15,123.15

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Solution

The fourth proportional to 27,698.40, 38,223.18 and 15,123.15 is: 20,869.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,698.40 : 38,223.18 = 15,123.15 : x
  2. Step 2: Convert to fraction form
    27,698.40/38,223.18 = 15,123.15/x
  3. Step 3: Cross multiply
    27,698.40x = 38,223.18 × 15,123.15
  4. Step 4: Simplify right side
    27,698.40x = 578,054,884.62
  5. Step 5: Solve for x
    x = 578,054,884.62/27,698.40
  6. Step 6: Final answer
    x = 20,869.61

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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.