Home / 18,426.77-25,403.17-15,582.72

Finding the Fourth Proportional to 18,426.77, 25,403.17 and 15,582.72

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Solution

The fourth proportional to 18,426.77, 25,403.17 and 15,582.72 is: 21,482.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,426.77 : 25,403.17 = 15,582.72 : x
  2. Step 2: Convert to fraction form
    18,426.77/25,403.17 = 15,582.72/x
  3. Step 3: Cross multiply
    18,426.77x = 25,403.17 × 15,582.72
  4. Step 4: Simplify right side
    18,426.77x = 395,850,485.22
  5. Step 5: Solve for x
    x = 395,850,485.22/18,426.77
  6. Step 6: Final answer
    x = 21,482.36

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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.