Home / 28,172.34-38,874.33-15,597.18

Finding the Fourth Proportional to 28,172.34, 38,874.33 and 15,597.18

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Solution

The fourth proportional to 28,172.34, 38,874.33 and 15,597.18 is: 21,522.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,172.34 : 38,874.33 = 15,597.18 : x
  2. Step 2: Convert to fraction form
    28,172.34/38,874.33 = 15,597.18/x
  3. Step 3: Cross multiply
    28,172.34x = 38,874.33 × 15,597.18
  4. Step 4: Simplify right side
    28,172.34x = 606,329,922.39
  5. Step 5: Solve for x
    x = 606,329,922.39/28,172.34
  6. Step 6: Final answer
    x = 21,522.17

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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.