Home / 10,420.89-15,632.88-3,025.41

Finding the Fourth Proportional to 10,420.89, 15,632.88 and 3,025.41

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Solution

The fourth proportional to 10,420.89, 15,632.88 and 3,025.41 is: 4,538.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,420.89 : 15,632.88 = 3,025.41 : x
  2. Step 2: Convert to fraction form
    10,420.89/15,632.88 = 3,025.41/x
  3. Step 3: Cross multiply
    10,420.89x = 15,632.88 × 3,025.41
  4. Step 4: Simplify right side
    10,420.89x = 47,295,871.48
  5. Step 5: Solve for x
    x = 47,295,871.48/10,420.89
  6. Step 6: Final answer
    x = 4,538.56

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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.