Home / 25,121.12-37,681.84-6,401.20

Finding the Fourth Proportional to 25,121.12, 37,681.84 and 6,401.20

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Solution

The fourth proportional to 25,121.12, 37,681.84 and 6,401.20 is: 9,601.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,121.12 : 37,681.84 = 6,401.20 : x
  2. Step 2: Convert to fraction form
    25,121.12/37,681.84 = 6,401.20/x
  3. Step 3: Cross multiply
    25,121.12x = 37,681.84 × 6,401.20
  4. Step 4: Simplify right side
    25,121.12x = 241,208,994.21
  5. Step 5: Solve for x
    x = 241,208,994.21/25,121.12
  6. Step 6: Final answer
    x = 9,601.84

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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.