Home / 28,946.85-39,947.36-16,199.93

Finding the Fourth Proportional to 28,946.85, 39,947.36 and 16,199.93

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Solution

The fourth proportional to 28,946.85, 39,947.36 and 16,199.93 is: 22,356.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,946.85 : 39,947.36 = 16,199.93 : x
  2. Step 2: Convert to fraction form
    28,946.85/39,947.36 = 16,199.93/x
  3. Step 3: Cross multiply
    28,946.85x = 39,947.36 × 16,199.93
  4. Step 4: Simplify right side
    28,946.85x = 647,144,426.25
  5. Step 5: Solve for x
    x = 647,144,426.25/28,946.85
  6. Step 6: Final answer
    x = 22,356.30

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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.