Home / 39,493.77-54,502.25-21,590.45

Finding the Fourth Proportional to 39,493.77, 54,502.25 and 21,590.45

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Solution

The fourth proportional to 39,493.77, 54,502.25 and 21,590.45 is: 29,795.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,493.77 : 54,502.25 = 21,590.45 : x
  2. Step 2: Convert to fraction form
    39,493.77/54,502.25 = 21,590.45/x
  3. Step 3: Cross multiply
    39,493.77x = 54,502.25 × 21,590.45
  4. Step 4: Simplify right side
    39,493.77x = 1,176,727,831.00
  5. Step 5: Solve for x
    x = 1,176,727,831.00/39,493.77
  6. Step 6: Final answer
    x = 29,795.28

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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.