Home / 10,421.40-15,632.91-3,025.98

Finding the Fourth Proportional to 10,421.40, 15,632.91 and 3,025.98

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Solution

The fourth proportional to 10,421.40, 15,632.91 and 3,025.98 is: 4,539.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,421.40 : 15,632.91 = 3,025.98 : x
  2. Step 2: Convert to fraction form
    10,421.40/15,632.91 = 3,025.98/x
  3. Step 3: Cross multiply
    10,421.40x = 15,632.91 × 3,025.98
  4. Step 4: Simplify right side
    10,421.40x = 47,304,873.00
  5. Step 5: Solve for x
    x = 47,304,873.00/10,421.40
  6. Step 6: Final answer
    x = 4,539.21

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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.