Home / 27,698.36-38,223.60-15,123.11

Finding the Fourth Proportional to 27,698.36, 38,223.60 and 15,123.11

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Solution

The fourth proportional to 27,698.36, 38,223.60 and 15,123.11 is: 20,869.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,698.36 : 38,223.60 = 15,123.11 : x
  2. Step 2: Convert to fraction form
    27,698.36/38,223.60 = 15,123.11/x
  3. Step 3: Cross multiply
    27,698.36x = 38,223.60 × 15,123.11
  4. Step 4: Simplify right side
    27,698.36x = 578,059,459.57
  5. Step 5: Solve for x
    x = 578,059,459.57/27,698.36
  6. Step 6: Final answer
    x = 20,869.81

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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.