Home / 39,515.12-59,263.80-11,428.91

Finding the Fourth Proportional to 39,515.12, 59,263.80 and 11,428.91

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Solution

The fourth proportional to 39,515.12, 59,263.80 and 11,428.91 is: 17,140.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,515.12 : 59,263.80 = 11,428.91 : x
  2. Step 2: Convert to fraction form
    39,515.12/59,263.80 = 11,428.91/x
  3. Step 3: Cross multiply
    39,515.12x = 59,263.80 × 11,428.91
  4. Step 4: Simplify right side
    39,515.12x = 677,320,340.14
  5. Step 5: Solve for x
    x = 677,320,340.14/39,515.12
  6. Step 6: Final answer
    x = 17,140.79

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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.