Home / 31,396.86-43,330.10-17,972.33

Finding the Fourth Proportional to 31,396.86, 43,330.10 and 17,972.33

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Solution

The fourth proportional to 31,396.86, 43,330.10 and 17,972.33 is: 24,803.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,396.86 : 43,330.10 = 17,972.33 : x
  2. Step 2: Convert to fraction form
    31,396.86/43,330.10 = 17,972.33/x
  3. Step 3: Cross multiply
    31,396.86x = 43,330.10 × 17,972.33
  4. Step 4: Simplify right side
    31,396.86x = 778,742,856.13
  5. Step 5: Solve for x
    x = 778,742,856.13/31,396.86
  6. Step 6: Final answer
    x = 24,803.21

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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.