Home / 39,690.32-59,535.47-11,988.32

Finding the Fourth Proportional to 39,690.32, 59,535.47 and 11,988.32

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Solution

The fourth proportional to 39,690.32, 59,535.47 and 11,988.32 is: 17,982.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,690.32 : 59,535.47 = 11,988.32 : x
  2. Step 2: Convert to fraction form
    39,690.32/59,535.47 = 11,988.32/x
  3. Step 3: Cross multiply
    39,690.32x = 59,535.47 × 11,988.32
  4. Step 4: Simplify right side
    39,690.32x = 713,729,968.03
  5. Step 5: Solve for x
    x = 713,729,968.03/39,690.32
  6. Step 6: Final answer
    x = 17,982.47

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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.