Home / 20,432.36-30,648.55-6,392.51

Finding the Fourth Proportional to 20,432.36, 30,648.55 and 6,392.51

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Solution

The fourth proportional to 20,432.36, 30,648.55 and 6,392.51 is: 9,588.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,432.36 : 30,648.55 = 6,392.51 : x
  2. Step 2: Convert to fraction form
    20,432.36/30,648.55 = 6,392.51/x
  3. Step 3: Cross multiply
    20,432.36x = 30,648.55 × 6,392.51
  4. Step 4: Simplify right side
    20,432.36x = 195,921,162.36
  5. Step 5: Solve for x
    x = 195,921,162.36/20,432.36
  6. Step 6: Final answer
    x = 9,588.77

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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.