Home / 25,813.68-35,612.64-15,186.48

Finding the Fourth Proportional to 25,813.68, 35,612.64 and 15,186.48

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Solution

The fourth proportional to 25,813.68, 35,612.64 and 15,186.48 is: 20,951.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,813.68 : 35,612.64 = 15,186.48 : x
  2. Step 2: Convert to fraction form
    25,813.68/35,612.64 = 15,186.48/x
  3. Step 3: Cross multiply
    25,813.68x = 35,612.64 × 15,186.48
  4. Step 4: Simplify right side
    25,813.68x = 540,830,645.11
  5. Step 5: Solve for x
    x = 540,830,645.11/25,813.68
  6. Step 6: Final answer
    x = 20,951.32

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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.