Home / 20,860.98-31,291.53-6,070.25

Finding the Fourth Proportional to 20,860.98, 31,291.53 and 6,070.25

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Solution

The fourth proportional to 20,860.98, 31,291.53 and 6,070.25 is: 9,105.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,860.98 : 31,291.53 = 6,070.25 : x
  2. Step 2: Convert to fraction form
    20,860.98/31,291.53 = 6,070.25/x
  3. Step 3: Cross multiply
    20,860.98x = 31,291.53 × 6,070.25
  4. Step 4: Simplify right side
    20,860.98x = 189,947,517.99
  5. Step 5: Solve for x
    x = 189,947,517.99/20,860.98
  6. Step 6: Final answer
    x = 9,105.40

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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.