Home / 20,555.04-30,832.54-4,972.66

Finding the Fourth Proportional to 20,555.04, 30,832.54 and 4,972.66

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Solution

The fourth proportional to 20,555.04, 30,832.54 and 4,972.66 is: 7,458.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,555.04 : 30,832.54 = 4,972.66 : x
  2. Step 2: Convert to fraction form
    20,555.04/30,832.54 = 4,972.66/x
  3. Step 3: Cross multiply
    20,555.04x = 30,832.54 × 4,972.66
  4. Step 4: Simplify right side
    20,555.04x = 153,319,738.36
  5. Step 5: Solve for x
    x = 153,319,738.36/20,555.04
  6. Step 6: Final answer
    x = 7,458.99

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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.