Home / 39,615.50-59,382.30-13,311.38

Finding the Fourth Proportional to 39,615.50, 59,382.30 and 13,311.38

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Solution

The fourth proportional to 39,615.50, 59,382.30 and 13,311.38 is: 19,953.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,615.50 : 59,382.30 = 13,311.38 : x
  2. Step 2: Convert to fraction form
    39,615.50/59,382.30 = 13,311.38/x
  3. Step 3: Cross multiply
    39,615.50x = 59,382.30 × 13,311.38
  4. Step 4: Simplify right side
    39,615.50x = 790,460,360.57
  5. Step 5: Solve for x
    x = 790,460,360.57/39,615.50
  6. Step 6: Final answer
    x = 19,953.31

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1.5x scale

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.