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Finding the Fourth Proportional to 28,606.71, 42,922.41 and 15,468.36

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Solution

The fourth proportional to 28,606.71, 42,922.41 and 15,468.36 is: 23,209.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,606.71 : 42,922.41 = 15,468.36 : x
  2. Step 2: Convert to fraction form
    28,606.71/42,922.41 = 15,468.36/x
  3. Step 3: Cross multiply
    28,606.71x = 42,922.41 × 15,468.36
  4. Step 4: Simplify right side
    28,606.71x = 663,939,289.95
  5. Step 5: Solve for x
    x = 663,939,289.95/28,606.71
  6. Step 6: Final answer
    x = 23,209.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.