Home / 20,897.53-31,326.14-7,038.97

Finding the Fourth Proportional to 20,897.53, 31,326.14 and 7,038.97

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Solution

The fourth proportional to 20,897.53, 31,326.14 and 7,038.97 is: 10,551.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,897.53 : 31,326.14 = 7,038.97 : x
  2. Step 2: Convert to fraction form
    20,897.53/31,326.14 = 7,038.97/x
  3. Step 3: Cross multiply
    20,897.53x = 31,326.14 × 7,038.97
  4. Step 4: Simplify right side
    20,897.53x = 220,503,724.48
  5. Step 5: Solve for x
    x = 220,503,724.48/20,897.53
  6. Step 6: Final answer
    x = 10,551.66

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1.5x scale

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.