Home / 21,639.18-32,458.77-5,223.18

Finding the Fourth Proportional to 21,639.18, 32,458.77 and 5,223.18

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Solution

The fourth proportional to 21,639.18, 32,458.77 and 5,223.18 is: 7,834.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,639.18 : 32,458.77 = 5,223.18 : x
  2. Step 2: Convert to fraction form
    21,639.18/32,458.77 = 5,223.18/x
  3. Step 3: Cross multiply
    21,639.18x = 32,458.77 × 5,223.18
  4. Step 4: Simplify right side
    21,639.18x = 169,537,998.29
  5. Step 5: Solve for x
    x = 169,537,998.29/21,639.18
  6. Step 6: Final answer
    x = 7,834.77

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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.