Home / 28,435.92-42,635.63-11,807.43

Finding the Fourth Proportional to 28,435.92, 42,635.63 and 11,807.43

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Solution

The fourth proportional to 28,435.92, 42,635.63 and 11,807.43 is: 17,703.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,435.92 : 42,635.63 = 11,807.43 : x
  2. Step 2: Convert to fraction form
    28,435.92/42,635.63 = 11,807.43/x
  3. Step 3: Cross multiply
    28,435.92x = 42,635.63 × 11,807.43
  4. Step 4: Simplify right side
    28,435.92x = 503,417,246.25
  5. Step 5: Solve for x
    x = 503,417,246.25/28,435.92
  6. Step 6: Final answer
    x = 17,703.57

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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.