Home / 34,438.98-47,517.03-21,009.36

Finding the Fourth Proportional to 34,438.98, 47,517.03 and 21,009.36

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Solution

The fourth proportional to 34,438.98, 47,517.03 and 21,009.36 is: 28,987.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,438.98 : 47,517.03 = 21,009.36 : x
  2. Step 2: Convert to fraction form
    34,438.98/47,517.03 = 21,009.36/x
  3. Step 3: Cross multiply
    34,438.98x = 47,517.03 × 21,009.36
  4. Step 4: Simplify right side
    34,438.98x = 998,302,389.40
  5. Step 5: Solve for x
    x = 998,302,389.40/34,438.98
  6. Step 6: Final answer
    x = 28,987.57

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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.