Home / 28,640.42-39,523.29-16,064.90

Finding the Fourth Proportional to 28,640.42, 39,523.29 and 16,064.90

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Solution

The fourth proportional to 28,640.42, 39,523.29 and 16,064.90 is: 22,169.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,640.42 : 39,523.29 = 16,064.90 : x
  2. Step 2: Convert to fraction form
    28,640.42/39,523.29 = 16,064.90/x
  3. Step 3: Cross multiply
    28,640.42x = 39,523.29 × 16,064.90
  4. Step 4: Simplify right side
    28,640.42x = 634,937,503.90
  5. Step 5: Solve for x
    x = 634,937,503.90/28,640.42
  6. Step 6: Final answer
    x = 22,169.28

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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.