Home / 15,005.25-20,557.11-14,444.55

Finding the Fourth Proportional to 15,005.25, 20,557.11 and 14,444.55

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Solution

The fourth proportional to 15,005.25, 20,557.11 and 14,444.55 is: 19,788.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,005.25 : 20,557.11 = 14,444.55 : x
  2. Step 2: Convert to fraction form
    15,005.25/20,557.11 = 14,444.55/x
  3. Step 3: Cross multiply
    15,005.25x = 20,557.11 × 14,444.55
  4. Step 4: Simplify right side
    15,005.25x = 296,938,203.25
  5. Step 5: Solve for x
    x = 296,938,203.25/15,005.25
  6. Step 6: Final answer
    x = 19,788.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.