Home / 28,957.60-43,457.15-12,329.29

Finding the Fourth Proportional to 28,957.60, 43,457.15 and 12,329.29

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Solution

The fourth proportional to 28,957.60, 43,457.15 and 12,329.29 is: 18,502.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,957.60 : 43,457.15 = 12,329.29 : x
  2. Step 2: Convert to fraction form
    28,957.60/43,457.15 = 12,329.29/x
  3. Step 3: Cross multiply
    28,957.60x = 43,457.15 × 12,329.29
  4. Step 4: Simplify right side
    28,957.60x = 535,795,804.92
  5. Step 5: Solve for x
    x = 535,795,804.92/28,957.60
  6. Step 6: Final answer
    x = 18,502.77

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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.