Home / 28,093.15-38,768.18-15,347.51

Finding the Fourth Proportional to 28,093.15, 38,768.18 and 15,347.51

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Solution

The fourth proportional to 28,093.15, 38,768.18 and 15,347.51 is: 21,179.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,093.15 : 38,768.18 = 15,347.51 : x
  2. Step 2: Convert to fraction form
    28,093.15/38,768.18 = 15,347.51/x
  3. Step 3: Cross multiply
    28,093.15x = 38,768.18 × 15,347.51
  4. Step 4: Simplify right side
    28,093.15x = 594,995,030.23
  5. Step 5: Solve for x
    x = 594,995,030.23/28,093.15
  6. Step 6: Final answer
    x = 21,179.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.