Home / 20,310.66-28,030.05-12,353.22

Finding the Fourth Proportional to 20,310.66, 28,030.05 and 12,353.22

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Solution

The fourth proportional to 20,310.66, 28,030.05 and 12,353.22 is: 17,048.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,310.66 : 28,030.05 = 12,353.22 : x
  2. Step 2: Convert to fraction form
    20,310.66/28,030.05 = 12,353.22/x
  3. Step 3: Cross multiply
    20,310.66x = 28,030.05 × 12,353.22
  4. Step 4: Simplify right side
    20,310.66x = 346,261,374.26
  5. Step 5: Solve for x
    x = 346,261,374.26/20,310.66
  6. Step 6: Final answer
    x = 17,048.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.