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Finding the Fourth Proportional to 39,995.10, 60,004.59 and 11,916.13

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Solution

The fourth proportional to 39,995.10, 60,004.59 and 11,916.13 is: 17,877.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,995.10 : 60,004.59 = 11,916.13 : x
  2. Step 2: Convert to fraction form
    39,995.10/60,004.59 = 11,916.13/x
  3. Step 3: Cross multiply
    39,995.10x = 60,004.59 × 11,916.13
  4. Step 4: Simplify right side
    39,995.10x = 715,022,495.04
  5. Step 5: Solve for x
    x = 715,022,495.04/39,995.10
  6. Step 6: Final answer
    x = 17,877.75

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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.