Home / 39,459.10-59,191.71-13,163.80

Finding the Fourth Proportional to 39,459.10, 59,191.71 and 13,163.80

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Solution

The fourth proportional to 39,459.10, 59,191.71 and 13,163.80 is: 19,746.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,459.10 : 59,191.71 = 13,163.80 : x
  2. Step 2: Convert to fraction form
    39,459.10/59,191.71 = 13,163.80/x
  3. Step 3: Cross multiply
    39,459.10x = 59,191.71 × 13,163.80
  4. Step 4: Simplify right side
    39,459.10x = 779,187,832.10
  5. Step 5: Solve for x
    x = 779,187,832.10/39,459.10
  6. Step 6: Final answer
    x = 19,746.72

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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.