Home / 40,848.39-61,280.78-18,655.80

Finding the Fourth Proportional to 40,848.39, 61,280.78 and 18,655.80

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Solution

The fourth proportional to 40,848.39, 61,280.78 and 18,655.80 is: 27,987.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,848.39 : 61,280.78 = 18,655.80 : x
  2. Step 2: Convert to fraction form
    40,848.39/61,280.78 = 18,655.80/x
  3. Step 3: Cross multiply
    40,848.39x = 61,280.78 × 18,655.80
  4. Step 4: Simplify right side
    40,848.39x = 1,143,241,975.52
  5. Step 5: Solve for x
    x = 1,143,241,975.52/40,848.39
  6. Step 6: Final answer
    x = 27,987.44

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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.