Home / 10,435.31-15,655.28-3,040.32

Finding the Fourth Proportional to 10,435.31, 15,655.28 and 3,040.32

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Solution

The fourth proportional to 10,435.31, 15,655.28 and 3,040.32 is: 4,561.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,435.31 : 15,655.28 = 3,040.32 : x
  2. Step 2: Convert to fraction form
    10,435.31/15,655.28 = 3,040.32/x
  3. Step 3: Cross multiply
    10,435.31x = 15,655.28 × 3,040.32
  4. Step 4: Simplify right side
    10,435.31x = 47,597,045.69
  5. Step 5: Solve for x
    x = 47,597,045.69/10,435.31
  6. Step 6: Final answer
    x = 4,561.16

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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.