Home / 39,787.16-59,689.38-12,087.32

Finding the Fourth Proportional to 39,787.16, 59,689.38 and 12,087.32

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Solution

The fourth proportional to 39,787.16, 59,689.38 and 12,087.32 is: 18,133.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,787.16 : 59,689.38 = 12,087.32 : x
  2. Step 2: Convert to fraction form
    39,787.16/59,689.38 = 12,087.32/x
  3. Step 3: Cross multiply
    39,787.16x = 59,689.38 × 12,087.32
  4. Step 4: Simplify right side
    39,787.16x = 721,484,636.66
  5. Step 5: Solve for x
    x = 721,484,636.66/39,787.16
  6. Step 6: Final answer
    x = 18,133.60

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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.