Home / 19,938.26-27,512.84-10,985.46

Finding the Fourth Proportional to 19,938.26, 27,512.84 and 10,985.46

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Solution

The fourth proportional to 19,938.26, 27,512.84 and 10,985.46 is: 15,158.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,938.26 : 27,512.84 = 10,985.46 : x
  2. Step 2: Convert to fraction form
    19,938.26/27,512.84 = 10,985.46/x
  3. Step 3: Cross multiply
    19,938.26x = 27,512.84 × 10,985.46
  4. Step 4: Simplify right side
    19,938.26x = 302,241,148.38
  5. Step 5: Solve for x
    x = 302,241,148.38/19,938.26
  6. Step 6: Final answer
    x = 15,158.86

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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.