Home / 28,345.10-42,506.67-9,621.98

Finding the Fourth Proportional to 28,345.10, 42,506.67 and 9,621.98

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Solution

The fourth proportional to 28,345.10, 42,506.67 and 9,621.98 is: 14,429.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,345.10 : 42,506.67 = 9,621.98 : x
  2. Step 2: Convert to fraction form
    28,345.10/42,506.67 = 9,621.98/x
  3. Step 3: Cross multiply
    28,345.10x = 42,506.67 × 9,621.98
  4. Step 4: Simplify right side
    28,345.10x = 408,998,328.61
  5. Step 5: Solve for x
    x = 408,998,328.61/28,345.10
  6. Step 6: Final answer
    x = 14,429.24

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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.