Home / 44,516.50-66,782.31-21,130.18

Finding the Fourth Proportional to 44,516.50, 66,782.31 and 21,130.18

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Solution

The fourth proportional to 44,516.50, 66,782.31 and 21,130.18 is: 31,698.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,516.50 : 66,782.31 = 21,130.18 : x
  2. Step 2: Convert to fraction form
    44,516.50/66,782.31 = 21,130.18/x
  3. Step 3: Cross multiply
    44,516.50x = 66,782.31 × 21,130.18
  4. Step 4: Simplify right side
    44,516.50x = 1,411,122,231.12
  5. Step 5: Solve for x
    x = 1,411,122,231.12/44,516.50
  6. Step 6: Final answer
    x = 31,698.86

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Double scale
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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.