Home / 39,345.04-54,295.44-21,440.20

Finding the Fourth Proportional to 39,345.04, 54,295.44 and 21,440.20

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Solution

The fourth proportional to 39,345.04, 54,295.44 and 21,440.20 is: 29,587.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,345.04 : 54,295.44 = 21,440.20 : x
  2. Step 2: Convert to fraction form
    39,345.04/54,295.44 = 21,440.20/x
  3. Step 3: Cross multiply
    39,345.04x = 54,295.44 × 21,440.20
  4. Step 4: Simplify right side
    39,345.04x = 1,164,105,092.69
  5. Step 5: Solve for x
    x = 1,164,105,092.69/39,345.04
  6. Step 6: Final answer
    x = 29,587.09

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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.