Home / 19,439.09-29,152.76-5,395.71

Finding the Fourth Proportional to 19,439.09, 29,152.76 and 5,395.71

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Solution

The fourth proportional to 19,439.09, 29,152.76 and 5,395.71 is: 8,091.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,439.09 : 29,152.76 = 5,395.71 : x
  2. Step 2: Convert to fraction form
    19,439.09/29,152.76 = 5,395.71/x
  3. Step 3: Cross multiply
    19,439.09x = 29,152.76 × 5,395.71
  4. Step 4: Simplify right side
    19,439.09x = 157,299,811.68
  5. Step 5: Solve for x
    x = 157,299,811.68/19,439.09
  6. Step 6: Final answer
    x = 8,091.93

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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.