Home / 28,688.34-43,026.02-10,912.66

Finding the Fourth Proportional to 28,688.34, 43,026.02 and 10,912.66

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Solution

The fourth proportional to 28,688.34, 43,026.02 and 10,912.66 is: 16,366.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,688.34 : 43,026.02 = 10,912.66 : x
  2. Step 2: Convert to fraction form
    28,688.34/43,026.02 = 10,912.66/x
  3. Step 3: Cross multiply
    28,688.34x = 43,026.02 × 10,912.66
  4. Step 4: Simplify right side
    28,688.34x = 469,528,327.41
  5. Step 5: Solve for x
    x = 469,528,327.41/28,688.34
  6. Step 6: Final answer
    x = 16,366.52

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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.