Home / 31,866.24-43,968.16-18,437.16

Finding the Fourth Proportional to 31,866.24, 43,968.16 and 18,437.16

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Solution

The fourth proportional to 31,866.24, 43,968.16 and 18,437.16 is: 25,439.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,866.24 : 43,968.16 = 18,437.16 : x
  2. Step 2: Convert to fraction form
    31,866.24/43,968.16 = 18,437.16/x
  3. Step 3: Cross multiply
    31,866.24x = 43,968.16 × 18,437.16
  4. Step 4: Simplify right side
    31,866.24x = 810,648,000.83
  5. Step 5: Solve for x
    x = 810,648,000.83/31,866.24
  6. Step 6: Final answer
    x = 25,439.09

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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.