Home / 30,287.26-45,411.45-19,886.86

Finding the Fourth Proportional to 30,287.26, 45,411.45 and 19,886.86

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Solution

The fourth proportional to 30,287.26, 45,411.45 and 19,886.86 is: 29,817.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,287.26 : 45,411.45 = 19,886.86 : x
  2. Step 2: Convert to fraction form
    30,287.26/45,411.45 = 19,886.86/x
  3. Step 3: Cross multiply
    30,287.26x = 45,411.45 × 19,886.86
  4. Step 4: Simplify right side
    30,287.26x = 903,091,148.55
  5. Step 5: Solve for x
    x = 903,091,148.55/30,287.26
  6. Step 6: Final answer
    x = 29,817.53

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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.