Home / 38,573.85-53,229.69-21,345.21

Finding the Fourth Proportional to 38,573.85, 53,229.69 and 21,345.21

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Solution

The fourth proportional to 38,573.85, 53,229.69 and 21,345.21 is: 29,455.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,573.85 : 53,229.69 = 21,345.21 : x
  2. Step 2: Convert to fraction form
    38,573.85/53,229.69 = 21,345.21/x
  3. Step 3: Cross multiply
    38,573.85x = 53,229.69 × 21,345.21
  4. Step 4: Simplify right side
    38,573.85x = 1,136,198,911.28
  5. Step 5: Solve for x
    x = 1,136,198,911.28/38,573.85
  6. Step 6: Final answer
    x = 29,455.16

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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.