Home / 42,998.47-64,498.07-11,835.43

Finding the Fourth Proportional to 42,998.47, 64,498.07 and 11,835.43

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Solution

The fourth proportional to 42,998.47, 64,498.07 and 11,835.43 is: 17,753.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,998.47 : 64,498.07 = 11,835.43 : x
  2. Step 2: Convert to fraction form
    42,998.47/64,498.07 = 11,835.43/x
  3. Step 3: Cross multiply
    42,998.47x = 64,498.07 × 11,835.43
  4. Step 4: Simplify right side
    42,998.47x = 763,362,392.62
  5. Step 5: Solve for x
    x = 763,362,392.62/42,998.47
  6. Step 6: Final answer
    x = 17,753.25

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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.