Home / 20,328.78-30,492.81-5,537.46

Finding the Fourth Proportional to 20,328.78, 30,492.81 and 5,537.46

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Solution

The fourth proportional to 20,328.78, 30,492.81 and 5,537.46 is: 8,306.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,328.78 : 30,492.81 = 5,537.46 : x
  2. Step 2: Convert to fraction form
    20,328.78/30,492.81 = 5,537.46/x
  3. Step 3: Cross multiply
    20,328.78x = 30,492.81 × 5,537.46
  4. Step 4: Simplify right side
    20,328.78x = 168,852,715.66
  5. Step 5: Solve for x
    x = 168,852,715.66/20,328.78
  6. Step 6: Final answer
    x = 8,306.09

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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.