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Finding the Fourth Proportional to 35,352.99, 53,038.13 and 11,979.63

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Solution

The fourth proportional to 35,352.99, 53,038.13 and 11,979.63 is: 17,972.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,352.99 : 53,038.13 = 11,979.63 : x
  2. Step 2: Convert to fraction form
    35,352.99/53,038.13 = 11,979.63/x
  3. Step 3: Cross multiply
    35,352.99x = 53,038.13 × 11,979.63
  4. Step 4: Simplify right side
    35,352.99x = 635,377,113.39
  5. Step 5: Solve for x
    x = 635,377,113.39/35,352.99
  6. Step 6: Final answer
    x = 17,972.37

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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.