Home / 20,988.44-31,526.40-17,707.94

Finding the Fourth Proportional to 20,988.44, 31,526.40 and 17,707.94

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Solution

The fourth proportional to 20,988.44, 31,526.40 and 17,707.94 is: 26,598.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,988.44 : 31,526.40 = 17,707.94 : x
  2. Step 2: Convert to fraction form
    20,988.44/31,526.40 = 17,707.94/x
  3. Step 3: Cross multiply
    20,988.44x = 31,526.40 × 17,707.94
  4. Step 4: Simplify right side
    20,988.44x = 558,267,599.62
  5. Step 5: Solve for x
    x = 558,267,599.62/20,988.44
  6. Step 6: Final answer
    x = 26,598.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.