Home / 31,399.64-43,330.61-17,970.44

Finding the Fourth Proportional to 31,399.64, 43,330.61 and 17,970.44

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Solution

The fourth proportional to 31,399.64, 43,330.61 and 17,970.44 is: 24,798.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,399.64 : 43,330.61 = 17,970.44 : x
  2. Step 2: Convert to fraction form
    31,399.64/43,330.61 = 17,970.44/x
  3. Step 3: Cross multiply
    31,399.64x = 43,330.61 × 17,970.44
  4. Step 4: Simplify right side
    31,399.64x = 778,670,199.18
  5. Step 5: Solve for x
    x = 778,670,199.18/31,399.64
  6. Step 6: Final answer
    x = 24,798.69

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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.