Home / 39,897.76-55,033.68-28,544.80

Finding the Fourth Proportional to 39,897.76, 55,033.68 and 28,544.80

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Solution

The fourth proportional to 39,897.76, 55,033.68 and 28,544.80 is: 39,373.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,897.76 : 55,033.68 = 28,544.80 : x
  2. Step 2: Convert to fraction form
    39,897.76/55,033.68 = 28,544.80/x
  3. Step 3: Cross multiply
    39,897.76x = 55,033.68 × 28,544.80
  4. Step 4: Simplify right side
    39,897.76x = 1,570,925,388.86
  5. Step 5: Solve for x
    x = 1,570,925,388.86/39,897.76
  6. Step 6: Final answer
    x = 39,373.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.