Home / 22,445.57-30,974.63-12,885.68

Finding the Fourth Proportional to 22,445.57, 30,974.63 and 12,885.68

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Solution

The fourth proportional to 22,445.57, 30,974.63 and 12,885.68 is: 17,782.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,445.57 : 30,974.63 = 12,885.68 : x
  2. Step 2: Convert to fraction form
    22,445.57/30,974.63 = 12,885.68/x
  3. Step 3: Cross multiply
    22,445.57x = 30,974.63 × 12,885.68
  4. Step 4: Simplify right side
    22,445.57x = 399,129,197.71
  5. Step 5: Solve for x
    x = 399,129,197.71/22,445.57
  6. Step 6: Final answer
    x = 17,782.10

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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.