Home / 21,026.07-31,558.56-10,645.11

Finding the Fourth Proportional to 21,026.07, 31,558.56 and 10,645.11

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Solution

The fourth proportional to 21,026.07, 31,558.56 and 10,645.11 is: 15,977.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,026.07 : 31,558.56 = 10,645.11 : x
  2. Step 2: Convert to fraction form
    21,026.07/31,558.56 = 10,645.11/x
  3. Step 3: Cross multiply
    21,026.07x = 31,558.56 × 10,645.11
  4. Step 4: Simplify right side
    21,026.07x = 335,944,342.64
  5. Step 5: Solve for x
    x = 335,944,342.64/21,026.07
  6. Step 6: Final answer
    x = 15,977.51

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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.