Home / 20,302.04-28,016.89-11,349.72

Finding the Fourth Proportional to 20,302.04, 28,016.89 and 11,349.72

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Solution

The fourth proportional to 20,302.04, 28,016.89 and 11,349.72 is: 15,662.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,302.04 : 28,016.89 = 11,349.72 : x
  2. Step 2: Convert to fraction form
    20,302.04/28,016.89 = 11,349.72/x
  3. Step 3: Cross multiply
    20,302.04x = 28,016.89 × 11,349.72
  4. Step 4: Simplify right side
    20,302.04x = 317,983,828.40
  5. Step 5: Solve for x
    x = 317,983,828.40/20,302.04
  6. Step 6: Final answer
    x = 15,662.65

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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.