Home / 25,332.08-38,005.80-12,180.72

Finding the Fourth Proportional to 25,332.08, 38,005.80 and 12,180.72

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Solution

The fourth proportional to 25,332.08, 38,005.80 and 12,180.72 is: 18,274.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,332.08 : 38,005.80 = 12,180.72 : x
  2. Step 2: Convert to fraction form
    25,332.08/38,005.80 = 12,180.72/x
  3. Step 3: Cross multiply
    25,332.08x = 38,005.80 × 12,180.72
  4. Step 4: Simplify right side
    25,332.08x = 462,938,008.18
  5. Step 5: Solve for x
    x = 462,938,008.18/25,332.08
  6. Step 6: Final answer
    x = 18,274.77

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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.