Home / 28,228.67-38,956.91-16,130.10

Finding the Fourth Proportional to 28,228.67, 38,956.91 and 16,130.10

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Solution

The fourth proportional to 28,228.67, 38,956.91 and 16,130.10 is: 22,260.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,228.67 : 38,956.91 = 16,130.10 : x
  2. Step 2: Convert to fraction form
    28,228.67/38,956.91 = 16,130.10/x
  3. Step 3: Cross multiply
    28,228.67x = 38,956.91 × 16,130.10
  4. Step 4: Simplify right side
    28,228.67x = 628,378,773.34
  5. Step 5: Solve for x
    x = 628,378,773.34/28,228.67
  6. Step 6: Final answer
    x = 22,260.31

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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.