Home / 28,002.70-38,626.63-16,664.59

Finding the Fourth Proportional to 28,002.70, 38,626.63 and 16,664.59

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Solution

The fourth proportional to 28,002.70, 38,626.63 and 16,664.59 is: 22,986.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,002.70 : 38,626.63 = 16,664.59 : x
  2. Step 2: Convert to fraction form
    28,002.70/38,626.63 = 16,664.59/x
  3. Step 3: Cross multiply
    28,002.70x = 38,626.63 × 16,664.59
  4. Step 4: Simplify right side
    28,002.70x = 643,696,952.03
  5. Step 5: Solve for x
    x = 643,696,952.03/28,002.70
  6. Step 6: Final answer
    x = 22,986.96

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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.