Home / 20,702.57-31,058.42-7,554.89

Finding the Fourth Proportional to 20,702.57, 31,058.42 and 7,554.89

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Solution

The fourth proportional to 20,702.57, 31,058.42 and 7,554.89 is: 11,334.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,702.57 : 31,058.42 = 7,554.89 : x
  2. Step 2: Convert to fraction form
    20,702.57/31,058.42 = 7,554.89/x
  3. Step 3: Cross multiply
    20,702.57x = 31,058.42 × 7,554.89
  4. Step 4: Simplify right side
    20,702.57x = 234,642,986.55
  5. Step 5: Solve for x
    x = 234,642,986.55/20,702.57
  6. Step 6: Final answer
    x = 11,334.01

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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.