Home / 13,950.07-20,925.15-3,420.14

Finding the Fourth Proportional to 13,950.07, 20,925.15 and 3,420.14

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Solution

The fourth proportional to 13,950.07, 20,925.15 and 3,420.14 is: 5,130.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,950.07 : 20,925.15 = 3,420.14 : x
  2. Step 2: Convert to fraction form
    13,950.07/20,925.15 = 3,420.14/x
  3. Step 3: Cross multiply
    13,950.07x = 20,925.15 × 3,420.14
  4. Step 4: Simplify right side
    13,950.07x = 71,566,929.70
  5. Step 5: Solve for x
    x = 71,566,929.70/13,950.07
  6. Step 6: Final answer
    x = 5,130.22

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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.