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Finding the Fourth Proportional to 40,010.59, 60,018.95 and 11,928.49

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Solution

The fourth proportional to 40,010.59, 60,018.95 and 11,928.49 is: 17,893.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,010.59 : 60,018.95 = 11,928.49 : x
  2. Step 2: Convert to fraction form
    40,010.59/60,018.95 = 11,928.49/x
  3. Step 3: Cross multiply
    40,010.59x = 60,018.95 × 11,928.49
  4. Step 4: Simplify right side
    40,010.59x = 715,935,444.89
  5. Step 5: Solve for x
    x = 715,935,444.89/40,010.59
  6. Step 6: Final answer
    x = 17,893.65

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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.