Home / 20,587.52-30,881.28-5,005.04

Finding the Fourth Proportional to 20,587.52, 30,881.28 and 5,005.04

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Solution

The fourth proportional to 20,587.52, 30,881.28 and 5,005.04 is: 7,507.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,587.52 : 30,881.28 = 5,005.04 : x
  2. Step 2: Convert to fraction form
    20,587.52/30,881.28 = 5,005.04/x
  3. Step 3: Cross multiply
    20,587.52x = 30,881.28 × 5,005.04
  4. Step 4: Simplify right side
    20,587.52x = 154,562,041.65
  5. Step 5: Solve for x
    x = 154,562,041.65/20,587.52
  6. Step 6: Final answer
    x = 7,507.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.