Home / 31,675.40-43,709.08-18,926.04

Finding the Fourth Proportional to 31,675.40, 43,709.08 and 18,926.04

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Solution

The fourth proportional to 31,675.40, 43,709.08 and 18,926.04 is: 26,116.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,675.40 : 43,709.08 = 18,926.04 : x
  2. Step 2: Convert to fraction form
    31,675.40/43,709.08 = 18,926.04/x
  3. Step 3: Cross multiply
    31,675.40x = 43,709.08 × 18,926.04
  4. Step 4: Simplify right side
    31,675.40x = 827,239,749.13
  5. Step 5: Solve for x
    x = 827,239,749.13/31,675.40
  6. Step 6: Final answer
    x = 26,116.16

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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.