Home / 38,345.13-52,923.51-21,578.13

Finding the Fourth Proportional to 38,345.13, 52,923.51 and 21,578.13

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Solution

The fourth proportional to 38,345.13, 52,923.51 and 21,578.13 is: 29,781.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,345.13 : 52,923.51 = 21,578.13 : x
  2. Step 2: Convert to fraction form
    38,345.13/52,923.51 = 21,578.13/x
  3. Step 3: Cross multiply
    38,345.13x = 52,923.51 × 21,578.13
  4. Step 4: Simplify right side
    38,345.13x = 1,141,990,378.84
  5. Step 5: Solve for x
    x = 1,141,990,378.84/38,345.13
  6. Step 6: Final answer
    x = 29,781.89

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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.