Home / 42,833.07-64,264.81-19,138.44

Finding the Fourth Proportional to 42,833.07, 64,264.81 and 19,138.44

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Solution

The fourth proportional to 42,833.07, 64,264.81 and 19,138.44 is: 28,714.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,833.07 : 64,264.81 = 19,138.44 : x
  2. Step 2: Convert to fraction form
    42,833.07/64,264.81 = 19,138.44/x
  3. Step 3: Cross multiply
    42,833.07x = 64,264.81 × 19,138.44
  4. Step 4: Simplify right side
    42,833.07x = 1,229,928,210.30
  5. Step 5: Solve for x
    x = 1,229,928,210.30/42,833.07
  6. Step 6: Final answer
    x = 28,714.45

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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.