Home / 22,087.08-30,438.18-15,788.52

Finding the Fourth Proportional to 22,087.08, 30,438.18 and 15,788.52

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Solution

The fourth proportional to 22,087.08, 30,438.18 and 15,788.52 is: 21,758.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,087.08 : 30,438.18 = 15,788.52 : x
  2. Step 2: Convert to fraction form
    22,087.08/30,438.18 = 15,788.52/x
  3. Step 3: Cross multiply
    22,087.08x = 30,438.18 × 15,788.52
  4. Step 4: Simplify right side
    22,087.08x = 480,573,813.69
  5. Step 5: Solve for x
    x = 480,573,813.69/22,087.08
  6. Step 6: Final answer
    x = 21,758.14

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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.