Home / 20,810.42-31,216.54-6,020.84

Finding the Fourth Proportional to 20,810.42, 31,216.54 and 6,020.84

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Solution

The fourth proportional to 20,810.42, 31,216.54 and 6,020.84 is: 9,031.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,810.42 : 31,216.54 = 6,020.84 : x
  2. Step 2: Convert to fraction form
    20,810.42/31,216.54 = 6,020.84/x
  3. Step 3: Cross multiply
    20,810.42x = 31,216.54 × 6,020.84
  4. Step 4: Simplify right side
    20,810.42x = 187,949,636.61
  5. Step 5: Solve for x
    x = 187,949,636.61/20,810.42
  6. Step 6: Final answer
    x = 9,031.52

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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.