Home / 20,392.78-30,583.29-5,602.18

Finding the Fourth Proportional to 20,392.78, 30,583.29 and 5,602.18

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Solution

The fourth proportional to 20,392.78, 30,583.29 and 5,602.18 is: 8,401.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,392.78 : 30,583.29 = 5,602.18 : x
  2. Step 2: Convert to fraction form
    20,392.78/30,583.29 = 5,602.18/x
  3. Step 3: Cross multiply
    20,392.78x = 30,583.29 × 5,602.18
  4. Step 4: Simplify right side
    20,392.78x = 171,333,095.57
  5. Step 5: Solve for x
    x = 171,333,095.57/20,392.78
  6. Step 6: Final answer
    x = 8,401.65

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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.