Home / 39,878.42-59,826.20-19,898.66

Finding the Fourth Proportional to 39,878.42, 59,826.20 and 19,898.66

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Solution

The fourth proportional to 39,878.42, 59,826.20 and 19,898.66 is: 29,852.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,878.42 : 59,826.20 = 19,898.66 : x
  2. Step 2: Convert to fraction form
    39,878.42/59,826.20 = 19,898.66/x
  3. Step 3: Cross multiply
    39,878.42x = 59,826.20 × 19,898.66
  4. Step 4: Simplify right side
    39,878.42x = 1,190,460,814.27
  5. Step 5: Solve for x
    x = 1,190,460,814.27/39,878.42
  6. Step 6: Final answer
    x = 29,852.26

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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.