Home / 25,308.81-38,134.76-21,022.29

Finding the Fourth Proportional to 25,308.81, 38,134.76 and 21,022.29

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Solution

The fourth proportional to 25,308.81, 38,134.76 and 21,022.29 is: 31,675.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,308.81 : 38,134.76 = 21,022.29 : x
  2. Step 2: Convert to fraction form
    25,308.81/38,134.76 = 21,022.29/x
  3. Step 3: Cross multiply
    25,308.81x = 38,134.76 × 21,022.29
  4. Step 4: Simplify right side
    25,308.81x = 801,679,878.69
  5. Step 5: Solve for x
    x = 801,679,878.69/25,308.81
  6. Step 6: Final answer
    x = 31,675.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.