Home / 52,857.99-79,274.40-21,268.17

Finding the Fourth Proportional to 52,857.99, 79,274.40 and 21,268.17

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Solution

The fourth proportional to 52,857.99, 79,274.40 and 21,268.17 is: 31,897.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,857.99 : 79,274.40 = 21,268.17 : x
  2. Step 2: Convert to fraction form
    52,857.99/79,274.40 = 21,268.17/x
  3. Step 3: Cross multiply
    52,857.99x = 79,274.40 × 21,268.17
  4. Step 4: Simplify right side
    52,857.99x = 1,686,021,415.85
  5. Step 5: Solve for x
    x = 1,686,021,415.85/52,857.99
  6. Step 6: Final answer
    x = 31,897.19

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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.