Home / 28,810.74-39,768.66-16,877.88

Finding the Fourth Proportional to 28,810.74, 39,768.66 and 16,877.88

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Solution

The fourth proportional to 28,810.74, 39,768.66 and 16,877.88 is: 23,297.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,810.74 : 39,768.66 = 16,877.88 : x
  2. Step 2: Convert to fraction form
    28,810.74/39,768.66 = 16,877.88/x
  3. Step 3: Cross multiply
    28,810.74x = 39,768.66 × 16,877.88
  4. Step 4: Simplify right side
    28,810.74x = 671,210,671.24
  5. Step 5: Solve for x
    x = 671,210,671.24/28,810.74
  6. Step 6: Final answer
    x = 23,297.24

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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.