Home / 31,783.10-43,862.76-18,354.92

Finding the Fourth Proportional to 31,783.10, 43,862.76 and 18,354.92

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Solution

The fourth proportional to 31,783.10, 43,862.76 and 18,354.92 is: 25,330.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,783.10 : 43,862.76 = 18,354.92 : x
  2. Step 2: Convert to fraction form
    31,783.10/43,862.76 = 18,354.92/x
  3. Step 3: Cross multiply
    31,783.10x = 43,862.76 × 18,354.92
  4. Step 4: Simplify right side
    31,783.10x = 805,097,231.47
  5. Step 5: Solve for x
    x = 805,097,231.47/31,783.10
  6. Step 6: Final answer
    x = 25,330.99

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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.