Home / 30,007.71-45,011.97-28,181.16

Finding the Fourth Proportional to 30,007.71, 45,011.97 and 28,181.16

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Solution

The fourth proportional to 30,007.71, 45,011.97 and 28,181.16 is: 42,272.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,007.71 : 45,011.97 = 28,181.16 : x
  2. Step 2: Convert to fraction form
    30,007.71/45,011.97 = 28,181.16/x
  3. Step 3: Cross multiply
    30,007.71x = 45,011.97 × 28,181.16
  4. Step 4: Simplify right side
    30,007.71x = 1,268,489,528.49
  5. Step 5: Solve for x
    x = 1,268,489,528.49/30,007.71
  6. Step 6: Final answer
    x = 42,272.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.