Home / 20,925.42-31,388.08-7,598.39

Finding the Fourth Proportional to 20,925.42, 31,388.08 and 7,598.39

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Solution

The fourth proportional to 20,925.42, 31,388.08 and 7,598.39 is: 11,397.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,925.42 : 31,388.08 = 7,598.39 : x
  2. Step 2: Convert to fraction form
    20,925.42/31,388.08 = 7,598.39/x
  3. Step 3: Cross multiply
    20,925.42x = 31,388.08 × 7,598.39
  4. Step 4: Simplify right side
    20,925.42x = 238,498,835.20
  5. Step 5: Solve for x
    x = 238,498,835.20/20,925.42
  6. Step 6: Final answer
    x = 11,397.57

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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.