Home / 20,590.32-30,885.12-5,008.08

Finding the Fourth Proportional to 20,590.32, 30,885.12 and 5,008.08

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Solution

The fourth proportional to 20,590.32, 30,885.12 and 5,008.08 is: 7,512.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,590.32 : 30,885.12 = 5,008.08 : x
  2. Step 2: Convert to fraction form
    20,590.32/30,885.12 = 5,008.08/x
  3. Step 3: Cross multiply
    20,590.32x = 30,885.12 × 5,008.08
  4. Step 4: Simplify right side
    20,590.32x = 154,675,151.77
  5. Step 5: Solve for x
    x = 154,675,151.77/20,590.32
  6. Step 6: Final answer
    x = 7,512.03

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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.