Home / 10,420.64-15,632.51-3,025.16

Finding the Fourth Proportional to 10,420.64, 15,632.51 and 3,025.16

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Solution

The fourth proportional to 10,420.64, 15,632.51 and 3,025.16 is: 4,538.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,420.64 : 15,632.51 = 3,025.16 : x
  2. Step 2: Convert to fraction form
    10,420.64/15,632.51 = 3,025.16/x
  3. Step 3: Cross multiply
    10,420.64x = 15,632.51 × 3,025.16
  4. Step 4: Simplify right side
    10,420.64x = 47,290,828.83
  5. Step 5: Solve for x
    x = 47,290,828.83/10,420.64
  6. Step 6: Final answer
    x = 4,538.19

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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.