Home / 13,925.52-20,888.20-3,538.08

Finding the Fourth Proportional to 13,925.52, 20,888.20 and 3,538.08

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Solution

The fourth proportional to 13,925.52, 20,888.20 and 3,538.08 is: 5,307.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,925.52 : 20,888.20 = 3,538.08 : x
  2. Step 2: Convert to fraction form
    13,925.52/20,888.20 = 3,538.08/x
  3. Step 3: Cross multiply
    13,925.52x = 20,888.20 × 3,538.08
  4. Step 4: Simplify right side
    13,925.52x = 73,904,122.66
  5. Step 5: Solve for x
    x = 73,904,122.66/13,925.52
  6. Step 6: Final answer
    x = 5,307.10

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1.5x scale

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.