Home / 39,980.07-59,957.01-13,320.34

Finding the Fourth Proportional to 39,980.07, 59,957.01 and 13,320.34

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Solution

The fourth proportional to 39,980.07, 59,957.01 and 13,320.34 is: 19,976.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,980.07 : 59,957.01 = 13,320.34 : x
  2. Step 2: Convert to fraction form
    39,980.07/59,957.01 = 13,320.34/x
  3. Step 3: Cross multiply
    39,980.07x = 59,957.01 × 13,320.34
  4. Step 4: Simplify right side
    39,980.07x = 798,647,608.69
  5. Step 5: Solve for x
    x = 798,647,608.69/39,980.07
  6. Step 6: Final answer
    x = 19,976.14

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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.