Home / 21,926.70-32,681.61-20,681.19

Finding the Fourth Proportional to 21,926.70, 32,681.61 and 20,681.19

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Solution

The fourth proportional to 21,926.70, 32,681.61 and 20,681.19 is: 30,825.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,926.70 : 32,681.61 = 20,681.19 : x
  2. Step 2: Convert to fraction form
    21,926.70/32,681.61 = 20,681.19/x
  3. Step 3: Cross multiply
    21,926.70x = 32,681.61 × 20,681.19
  4. Step 4: Simplify right side
    21,926.70x = 675,894,585.92
  5. Step 5: Solve for x
    x = 675,894,585.92/21,926.70
  6. Step 6: Final answer
    x = 30,825.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.