Home / 19,737.60-27,225.28-11,775.30

Finding the Fourth Proportional to 19,737.60, 27,225.28 and 11,775.30

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Solution

The fourth proportional to 19,737.60, 27,225.28 and 11,775.30 is: 16,242.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,737.60 : 27,225.28 = 11,775.30 : x
  2. Step 2: Convert to fraction form
    19,737.60/27,225.28 = 11,775.30/x
  3. Step 3: Cross multiply
    19,737.60x = 27,225.28 × 11,775.30
  4. Step 4: Simplify right side
    19,737.60x = 320,585,839.58
  5. Step 5: Solve for x
    x = 320,585,839.58/19,737.60
  6. Step 6: Final answer
    x = 16,242.39

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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.