Home / 34,189.60-51,298.80-18,618.40

Finding the Fourth Proportional to 34,189.60, 51,298.80 and 18,618.40

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Solution

The fourth proportional to 34,189.60, 51,298.80 and 18,618.40 is: 27,935.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,189.60 : 51,298.80 = 18,618.40 : x
  2. Step 2: Convert to fraction form
    34,189.60/51,298.80 = 18,618.40/x
  3. Step 3: Cross multiply
    34,189.60x = 51,298.80 × 18,618.40
  4. Step 4: Simplify right side
    34,189.60x = 955,101,577.92
  5. Step 5: Solve for x
    x = 955,101,577.92/34,189.60
  6. Step 6: Final answer
    x = 27,935.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.