Home / 28,957.23-43,430.67-8,689.86

Finding the Fourth Proportional to 28,957.23, 43,430.67 and 8,689.86

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Solution

The fourth proportional to 28,957.23, 43,430.67 and 8,689.86 is: 13,033.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,957.23 : 43,430.67 = 8,689.86 : x
  2. Step 2: Convert to fraction form
    28,957.23/43,430.67 = 8,689.86/x
  3. Step 3: Cross multiply
    28,957.23x = 43,430.67 × 8,689.86
  4. Step 4: Simplify right side
    28,957.23x = 377,406,442.01
  5. Step 5: Solve for x
    x = 377,406,442.01/28,957.23
  6. Step 6: Final answer
    x = 13,033.24

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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.