Home / 21,938.74-30,253.35-16,574.38

Finding the Fourth Proportional to 21,938.74, 30,253.35 and 16,574.38

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Solution

The fourth proportional to 21,938.74, 30,253.35 and 16,574.38 is: 22,855.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,938.74 : 30,253.35 = 16,574.38 : x
  2. Step 2: Convert to fraction form
    21,938.74/30,253.35 = 16,574.38/x
  3. Step 3: Cross multiply
    21,938.74x = 30,253.35 × 16,574.38
  4. Step 4: Simplify right side
    21,938.74x = 501,430,519.17
  5. Step 5: Solve for x
    x = 501,430,519.17/21,938.74
  6. Step 6: Final answer
    x = 22,855.94

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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.