Home / 28,737.09-39,656.93-16,161.57

Finding the Fourth Proportional to 28,737.09, 39,656.93 and 16,161.57

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Solution

The fourth proportional to 28,737.09, 39,656.93 and 16,161.57 is: 22,302.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,737.09 : 39,656.93 = 16,161.57 : x
  2. Step 2: Convert to fraction form
    28,737.09/39,656.93 = 16,161.57/x
  3. Step 3: Cross multiply
    28,737.09x = 39,656.93 × 16,161.57
  4. Step 4: Simplify right side
    28,737.09x = 640,918,169.37
  5. Step 5: Solve for x
    x = 640,918,169.37/28,737.09
  6. Step 6: Final answer
    x = 22,302.82

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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.