Home / 20,325.47-28,051.72-12,367.22

Finding the Fourth Proportional to 20,325.47, 28,051.72 and 12,367.22

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Solution

The fourth proportional to 20,325.47, 28,051.72 and 12,367.22 is: 17,068.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,325.47 : 28,051.72 = 12,367.22 : x
  2. Step 2: Convert to fraction form
    20,325.47/28,051.72 = 12,367.22/x
  3. Step 3: Cross multiply
    20,325.47x = 28,051.72 × 12,367.22
  4. Step 4: Simplify right side
    20,325.47x = 346,921,621.44
  5. Step 5: Solve for x
    x = 346,921,621.44/20,325.47
  6. Step 6: Final answer
    x = 17,068.32

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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.