Home / 39,681.60-59,524.56-11,978.88

Finding the Fourth Proportional to 39,681.60, 59,524.56 and 11,978.88

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Solution

The fourth proportional to 39,681.60, 59,524.56 and 11,978.88 is: 17,968.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,681.60 : 59,524.56 = 11,978.88 : x
  2. Step 2: Convert to fraction form
    39,681.60/59,524.56 = 11,978.88/x
  3. Step 3: Cross multiply
    39,681.60x = 59,524.56 × 11,978.88
  4. Step 4: Simplify right side
    39,681.60x = 713,037,561.29
  5. Step 5: Solve for x
    x = 713,037,561.29/39,681.60
  6. Step 6: Final answer
    x = 17,968.97

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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.