Home / 16,432.88-22,720.58-15,698.48

Finding the Fourth Proportional to 16,432.88, 22,720.58 and 15,698.48

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Solution

The fourth proportional to 16,432.88, 22,720.58 and 15,698.48 is: 21,705.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,432.88 : 22,720.58 = 15,698.48 : x
  2. Step 2: Convert to fraction form
    16,432.88/22,720.58 = 15,698.48/x
  3. Step 3: Cross multiply
    16,432.88x = 22,720.58 × 15,698.48
  4. Step 4: Simplify right side
    16,432.88x = 356,678,378.62
  5. Step 5: Solve for x
    x = 356,678,378.62/16,432.88
  6. Step 6: Final answer
    x = 21,705.17

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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.