Home / 39,405.21-59,107.88-13,110.18

Finding the Fourth Proportional to 39,405.21, 59,107.88 and 13,110.18

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Solution

The fourth proportional to 39,405.21, 59,107.88 and 13,110.18 is: 19,665.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,405.21 : 59,107.88 = 13,110.18 : x
  2. Step 2: Convert to fraction form
    39,405.21/59,107.88 = 13,110.18/x
  3. Step 3: Cross multiply
    39,405.21x = 59,107.88 × 13,110.18
  4. Step 4: Simplify right side
    39,405.21x = 774,914,946.22
  5. Step 5: Solve for x
    x = 774,914,946.22/39,405.21
  6. Step 6: Final answer
    x = 19,665.29

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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.