Home / 31,399.32-43,330.92-17,970.50

Finding the Fourth Proportional to 31,399.32, 43,330.92 and 17,970.50

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Solution

The fourth proportional to 31,399.32, 43,330.92 and 17,970.50 is: 24,799.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,399.32 : 43,330.92 = 17,970.50 : x
  2. Step 2: Convert to fraction form
    31,399.32/43,330.92 = 17,970.50/x
  3. Step 3: Cross multiply
    31,399.32x = 43,330.92 × 17,970.50
  4. Step 4: Simplify right side
    31,399.32x = 778,678,297.86
  5. Step 5: Solve for x
    x = 778,678,297.86/31,399.32
  6. Step 6: Final answer
    x = 24,799.21

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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.