Home / 30,854.32-42,579.74-18,924.24

Finding the Fourth Proportional to 30,854.32, 42,579.74 and 18,924.24

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Solution

The fourth proportional to 30,854.32, 42,579.74 and 18,924.24 is: 26,115.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,854.32 : 42,579.74 = 18,924.24 : x
  2. Step 2: Convert to fraction form
    30,854.32/42,579.74 = 18,924.24/x
  3. Step 3: Cross multiply
    30,854.32x = 42,579.74 × 18,924.24
  4. Step 4: Simplify right side
    30,854.32x = 805,789,218.90
  5. Step 5: Solve for x
    x = 805,789,218.90/30,854.32
  6. Step 6: Final answer
    x = 26,115.93

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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.