Home / 25,718.12-35,496.56-15,649.81

Finding the Fourth Proportional to 25,718.12, 35,496.56 and 15,649.81

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Solution

The fourth proportional to 25,718.12, 35,496.56 and 15,649.81 is: 21,600.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,718.12 : 35,496.56 = 15,649.81 : x
  2. Step 2: Convert to fraction form
    25,718.12/35,496.56 = 15,649.81/x
  3. Step 3: Cross multiply
    25,718.12x = 35,496.56 × 15,649.81
  4. Step 4: Simplify right side
    25,718.12x = 555,514,370.04
  5. Step 5: Solve for x
    x = 555,514,370.04/25,718.12
  6. Step 6: Final answer
    x = 21,600.11

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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.