Home / 21,666.10-32,478.39-9,168.93

Finding the Fourth Proportional to 21,666.10, 32,478.39 and 9,168.93

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Solution

The fourth proportional to 21,666.10, 32,478.39 and 9,168.93 is: 13,744.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,666.10 : 32,478.39 = 9,168.93 : x
  2. Step 2: Convert to fraction form
    21,666.10/32,478.39 = 9,168.93/x
  3. Step 3: Cross multiply
    21,666.10x = 32,478.39 × 9,168.93
  4. Step 4: Simplify right side
    21,666.10x = 297,792,038.58
  5. Step 5: Solve for x
    x = 297,792,038.58/21,666.10
  6. Step 6: Final answer
    x = 13,744.61

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1.5x scale

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.