Home / 28,607.07-39,480.26-16,670.15

Finding the Fourth Proportional to 28,607.07, 39,480.26 and 16,670.15

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Solution

The fourth proportional to 28,607.07, 39,480.26 and 16,670.15 is: 23,006.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,607.07 : 39,480.26 = 16,670.15 : x
  2. Step 2: Convert to fraction form
    28,607.07/39,480.26 = 16,670.15/x
  3. Step 3: Cross multiply
    28,607.07x = 39,480.26 × 16,670.15
  4. Step 4: Simplify right side
    28,607.07x = 658,141,575.49
  5. Step 5: Solve for x
    x = 658,141,575.49/28,607.07
  6. Step 6: Final answer
    x = 23,006.26

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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.