Home / 19,856.10-29,775.41-9,329.11

Finding the Fourth Proportional to 19,856.10, 29,775.41 and 9,329.11

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Solution

The fourth proportional to 19,856.10, 29,775.41 and 9,329.11 is: 13,989.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,856.10 : 29,775.41 = 9,329.11 : x
  2. Step 2: Convert to fraction form
    19,856.10/29,775.41 = 9,329.11/x
  3. Step 3: Cross multiply
    19,856.10x = 29,775.41 × 9,329.11
  4. Step 4: Simplify right side
    19,856.10x = 277,778,041.56
  5. Step 5: Solve for x
    x = 277,778,041.56/19,856.10
  6. Step 6: Final answer
    x = 13,989.55

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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.