Home / 28,729.84-39,646.92-16,154.68

Finding the Fourth Proportional to 28,729.84, 39,646.92 and 16,154.68

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Solution

The fourth proportional to 28,729.84, 39,646.92 and 16,154.68 is: 22,293.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,729.84 : 39,646.92 = 16,154.68 : x
  2. Step 2: Convert to fraction form
    28,729.84/39,646.92 = 16,154.68/x
  3. Step 3: Cross multiply
    28,729.84x = 39,646.92 × 16,154.68
  4. Step 4: Simplify right side
    28,729.84x = 640,483,305.59
  5. Step 5: Solve for x
    x = 640,483,305.59/28,729.84
  6. Step 6: Final answer
    x = 22,293.31

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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.