Home / 21,764.46-30,095.25-17,280.30

Finding the Fourth Proportional to 21,764.46, 30,095.25 and 17,280.30

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Solution

The fourth proportional to 21,764.46, 30,095.25 and 17,280.30 is: 23,894.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,764.46 : 30,095.25 = 17,280.30 : x
  2. Step 2: Convert to fraction form
    21,764.46/30,095.25 = 17,280.30/x
  3. Step 3: Cross multiply
    21,764.46x = 30,095.25 × 17,280.30
  4. Step 4: Simplify right side
    21,764.46x = 520,054,948.58
  5. Step 5: Solve for x
    x = 520,054,948.58/21,764.46
  6. Step 6: Final answer
    x = 23,894.69

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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.