Home / 39,965.21-59,946.39-9,979.62

Finding the Fourth Proportional to 39,965.21, 59,946.39 and 9,979.62

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Solution

The fourth proportional to 39,965.21, 59,946.39 and 9,979.62 is: 14,969.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,965.21 : 59,946.39 = 9,979.62 : x
  2. Step 2: Convert to fraction form
    39,965.21/59,946.39 = 9,979.62/x
  3. Step 3: Cross multiply
    39,965.21x = 59,946.39 × 9,979.62
  4. Step 4: Simplify right side
    39,965.21x = 598,241,892.84
  5. Step 5: Solve for x
    x = 598,241,892.84/39,965.21
  6. Step 6: Final answer
    x = 14,969.07

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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.