Home / 30,287.90-45,439.41-29,785.64

Finding the Fourth Proportional to 30,287.90, 45,439.41 and 29,785.64

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Solution

The fourth proportional to 30,287.90, 45,439.41 and 29,785.64 is: 44,685.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,287.90 : 45,439.41 = 29,785.64 : x
  2. Step 2: Convert to fraction form
    30,287.90/45,439.41 = 29,785.64/x
  3. Step 3: Cross multiply
    30,287.90x = 45,439.41 × 29,785.64
  4. Step 4: Simplify right side
    30,287.90x = 1,353,441,908.07
  5. Step 5: Solve for x
    x = 1,353,441,908.07/30,287.90
  6. Step 6: Final answer
    x = 44,685.89

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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.