Home / 28,552.36-39,402.78-15,977.08

Finding the Fourth Proportional to 28,552.36, 39,402.78 and 15,977.08

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Solution

The fourth proportional to 28,552.36, 39,402.78 and 15,977.08 is: 22,048.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,552.36 : 39,402.78 = 15,977.08 : x
  2. Step 2: Convert to fraction form
    28,552.36/39,402.78 = 15,977.08/x
  3. Step 3: Cross multiply
    28,552.36x = 39,402.78 × 15,977.08
  4. Step 4: Simplify right side
    28,552.36x = 629,541,368.28
  5. Step 5: Solve for x
    x = 629,541,368.28/28,552.36
  6. Step 6: Final answer
    x = 22,048.66

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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.