Home / 28,230.36-38,956.34-16,130.39

Finding the Fourth Proportional to 28,230.36, 38,956.34 and 16,130.39

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Solution

The fourth proportional to 28,230.36, 38,956.34 and 16,130.39 is: 22,259.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,230.36 : 38,956.34 = 16,130.39 : x
  2. Step 2: Convert to fraction form
    28,230.36/38,956.34 = 16,130.39/x
  3. Step 3: Cross multiply
    28,230.36x = 38,956.34 × 16,130.39
  4. Step 4: Simplify right side
    28,230.36x = 628,380,681.74
  5. Step 5: Solve for x
    x = 628,380,681.74/28,230.36
  6. Step 6: Final answer
    x = 22,259.04

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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.