Home / 28,130.14-38,808.36-16,187.02

Finding the Fourth Proportional to 28,130.14, 38,808.36 and 16,187.02

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Solution

The fourth proportional to 28,130.14, 38,808.36 and 16,187.02 is: 22,331.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,130.14 : 38,808.36 = 16,187.02 : x
  2. Step 2: Convert to fraction form
    28,130.14/38,808.36 = 16,187.02/x
  3. Step 3: Cross multiply
    28,130.14x = 38,808.36 × 16,187.02
  4. Step 4: Simplify right side
    28,130.14x = 628,191,699.49
  5. Step 5: Solve for x
    x = 628,191,699.49/28,130.14
  6. Step 6: Final answer
    x = 22,331.62

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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.