Home / 28,400.99-39,193.52-16,471.40

Finding the Fourth Proportional to 28,400.99, 39,193.52 and 16,471.40

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Solution

The fourth proportional to 28,400.99, 39,193.52 and 16,471.40 is: 22,730.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,400.99 : 39,193.52 = 16,471.40 : x
  2. Step 2: Convert to fraction form
    28,400.99/39,193.52 = 16,471.40/x
  3. Step 3: Cross multiply
    28,400.99x = 39,193.52 × 16,471.40
  4. Step 4: Simplify right side
    28,400.99x = 645,571,867.00
  5. Step 5: Solve for x
    x = 645,571,867.00/28,400.99
  6. Step 6: Final answer
    x = 22,730.62

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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.