Home / 28,047.78-38,704.64-16,102.71

Finding the Fourth Proportional to 28,047.78, 38,704.64 and 16,102.71

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Solution

The fourth proportional to 28,047.78, 38,704.64 and 16,102.71 is: 22,220.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,047.78 : 38,704.64 = 16,102.71 : x
  2. Step 2: Convert to fraction form
    28,047.78/38,704.64 = 16,102.71/x
  3. Step 3: Cross multiply
    28,047.78x = 38,704.64 × 16,102.71
  4. Step 4: Simplify right side
    28,047.78x = 623,249,513.06
  5. Step 5: Solve for x
    x = 623,249,513.06/28,047.78
  6. Step 6: Final answer
    x = 22,220.99

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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.