Home / 39,406.10-59,109.14-13,110.80

Finding the Fourth Proportional to 39,406.10, 59,109.14 and 13,110.80

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Solution

The fourth proportional to 39,406.10, 59,109.14 and 13,110.80 is: 19,666.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,406.10 : 59,109.14 = 13,110.80 : x
  2. Step 2: Convert to fraction form
    39,406.10/59,109.14 = 13,110.80/x
  3. Step 3: Cross multiply
    39,406.10x = 59,109.14 × 13,110.80
  4. Step 4: Simplify right side
    39,406.10x = 774,968,112.71
  5. Step 5: Solve for x
    x = 774,968,112.71/39,406.10
  6. Step 6: Final answer
    x = 19,666.20

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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.