Home / 39,573.80-54,613.06-21,670.46

Finding the Fourth Proportional to 39,573.80, 54,613.06 and 21,670.46

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Solution

The fourth proportional to 39,573.80, 54,613.06 and 21,670.46 is: 29,905.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,573.80 : 54,613.06 = 21,670.46 : x
  2. Step 2: Convert to fraction form
    39,573.80/54,613.06 = 21,670.46/x
  3. Step 3: Cross multiply
    39,573.80x = 54,613.06 × 21,670.46
  4. Step 4: Simplify right side
    39,573.80x = 1,183,490,132.21
  5. Step 5: Solve for x
    x = 1,183,490,132.21/39,573.80
  6. Step 6: Final answer
    x = 29,905.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.