Home / 31,760.04-43,803.48-21,699.84

Finding the Fourth Proportional to 31,760.04, 43,803.48 and 21,699.84

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Solution

The fourth proportional to 31,760.04, 43,803.48 and 21,699.84 is: 29,928.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,760.04 : 43,803.48 = 21,699.84 : x
  2. Step 2: Convert to fraction form
    31,760.04/43,803.48 = 21,699.84/x
  3. Step 3: Cross multiply
    31,760.04x = 43,803.48 × 21,699.84
  4. Step 4: Simplify right side
    31,760.04x = 950,528,507.44
  5. Step 5: Solve for x
    x = 950,528,507.44/31,760.04
  6. Step 6: Final answer
    x = 29,928.44

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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.