Home / 30,784.44-42,479.46-18,851.16

Finding the Fourth Proportional to 30,784.44, 42,479.46 and 18,851.16

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Solution

The fourth proportional to 30,784.44, 42,479.46 and 18,851.16 is: 26,012.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,784.44 : 42,479.46 = 18,851.16 : x
  2. Step 2: Convert to fraction form
    30,784.44/42,479.46 = 18,851.16/x
  3. Step 3: Cross multiply
    30,784.44x = 42,479.46 × 18,851.16
  4. Step 4: Simplify right side
    30,784.44x = 800,787,097.17
  5. Step 5: Solve for x
    x = 800,787,097.17/30,784.44
  6. Step 6: Final answer
    x = 26,012.72

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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.