Home / 25,649.48-35,317.32-21,864.16

Finding the Fourth Proportional to 25,649.48, 35,317.32 and 21,864.16

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Solution

The fourth proportional to 25,649.48, 35,317.32 and 21,864.16 is: 30,105.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,649.48 : 35,317.32 = 21,864.16 : x
  2. Step 2: Convert to fraction form
    25,649.48/35,317.32 = 21,864.16/x
  3. Step 3: Cross multiply
    25,649.48x = 35,317.32 × 21,864.16
  4. Step 4: Simplify right side
    25,649.48x = 772,183,535.25
  5. Step 5: Solve for x
    x = 772,183,535.25/25,649.48
  6. Step 6: Final answer
    x = 30,105.23

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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.