Home / 21,276.07-31,933.79-10,753.51

Finding the Fourth Proportional to 21,276.07, 31,933.79 and 10,753.51

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Solution

The fourth proportional to 21,276.07, 31,933.79 and 10,753.51 is: 16,140.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,276.07 : 31,933.79 = 10,753.51 : x
  2. Step 2: Convert to fraction form
    21,276.07/31,933.79 = 10,753.51/x
  3. Step 3: Cross multiply
    21,276.07x = 31,933.79 × 10,753.51
  4. Step 4: Simplify right side
    21,276.07x = 343,400,357.19
  5. Step 5: Solve for x
    x = 343,400,357.19/21,276.07
  6. Step 6: Final answer
    x = 16,140.22

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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.