Home / 39,359.78-59,051.18-12,705.15

Finding the Fourth Proportional to 39,359.78, 59,051.18 and 12,705.15

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Solution

The fourth proportional to 39,359.78, 59,051.18 and 12,705.15 is: 19,061.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,359.78 : 59,051.18 = 12,705.15 : x
  2. Step 2: Convert to fraction form
    39,359.78/59,051.18 = 12,705.15/x
  3. Step 3: Cross multiply
    39,359.78x = 59,051.18 × 12,705.15
  4. Step 4: Simplify right side
    39,359.78x = 750,254,036.05
  5. Step 5: Solve for x
    x = 750,254,036.05/39,359.78
  6. Step 6: Final answer
    x = 19,061.44

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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.