Home / 39,407.72-59,120.48-13,113.50

Finding the Fourth Proportional to 39,407.72, 59,120.48 and 13,113.50

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Solution

The fourth proportional to 39,407.72, 59,120.48 and 13,113.50 is: 19,673.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,407.72 : 59,120.48 = 13,113.50 : x
  2. Step 2: Convert to fraction form
    39,407.72/59,120.48 = 13,113.50/x
  3. Step 3: Cross multiply
    39,407.72x = 59,120.48 × 13,113.50
  4. Step 4: Simplify right side
    39,407.72x = 775,276,151.66
  5. Step 5: Solve for x
    x = 775,276,151.66/39,407.72
  6. Step 6: Final answer
    x = 19,673.21

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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.