Home / 39,787.32-59,678.28-28,714.08

Finding the Fourth Proportional to 39,787.32, 59,678.28 and 28,714.08

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Solution

The fourth proportional to 39,787.32, 59,678.28 and 28,714.08 is: 43,069.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,787.32 : 59,678.28 = 28,714.08 : x
  2. Step 2: Convert to fraction form
    39,787.32/59,678.28 = 28,714.08/x
  3. Step 3: Cross multiply
    39,787.32x = 59,678.28 × 28,714.08
  4. Step 4: Simplify right side
    39,787.32x = 1,713,606,906.18
  5. Step 5: Solve for x
    x = 1,713,606,906.18/39,787.32
  6. Step 6: Final answer
    x = 43,069.17

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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.