Home / 40,011.09-60,019.68-11,928.99

Finding the Fourth Proportional to 40,011.09, 60,019.68 and 11,928.99

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Solution

The fourth proportional to 40,011.09, 60,019.68 and 11,928.99 is: 17,894.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,011.09 : 60,019.68 = 11,928.99 : x
  2. Step 2: Convert to fraction form
    40,011.09/60,019.68 = 11,928.99/x
  3. Step 3: Cross multiply
    40,011.09x = 60,019.68 × 11,928.99
  4. Step 4: Simplify right side
    40,011.09x = 715,974,162.52
  5. Step 5: Solve for x
    x = 715,974,162.52/40,011.09
  6. Step 6: Final answer
    x = 17,894.39

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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.