Home / 19,928.71-29,911.54-10,074.93

Finding the Fourth Proportional to 19,928.71, 29,911.54 and 10,074.93

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Solution

The fourth proportional to 19,928.71, 29,911.54 and 10,074.93 is: 15,121.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928.71 : 29,911.54 = 10,074.93 : x
  2. Step 2: Convert to fraction form
    19,928.71/29,911.54 = 10,074.93/x
  3. Step 3: Cross multiply
    19,928.71x = 29,911.54 × 10,074.93
  4. Step 4: Simplify right side
    19,928.71x = 301,356,671.69
  5. Step 5: Solve for x
    x = 301,356,671.69/19,928.71
  6. Step 6: Final answer
    x = 15,121.74

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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.