Home / 53,311.32-79,901.40-18,210

Finding the Fourth Proportional to 53,311.32, 79,901.40 and 18,210

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Solution

The fourth proportional to 53,311.32, 79,901.40 and 18,210 is: 27,292.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,311.32 : 79,901.40 = 18,210 : x
  2. Step 2: Convert to fraction form
    53,311.32/79,901.40 = 18,210/x
  3. Step 3: Cross multiply
    53,311.32x = 79,901.40 × 18,210
  4. Step 4: Simplify right side
    53,311.32x = 1,455,004,494
  5. Step 5: Solve for x
    x = 1,455,004,494/53,311.32
  6. Step 6: Final answer
    x = 27,292.60

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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.