Home / 28,685.95-43,014.11-12,877.41

Finding the Fourth Proportional to 28,685.95, 43,014.11 and 12,877.41

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Solution

The fourth proportional to 28,685.95, 43,014.11 and 12,877.41 is: 19,309.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,685.95 : 43,014.11 = 12,877.41 : x
  2. Step 2: Convert to fraction form
    28,685.95/43,014.11 = 12,877.41/x
  3. Step 3: Cross multiply
    28,685.95x = 43,014.11 × 12,877.41
  4. Step 4: Simplify right side
    28,685.95x = 553,910,427.17
  5. Step 5: Solve for x
    x = 553,910,427.17/28,685.95
  6. Step 6: Final answer
    x = 19,309.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.