Home / 19,287.62-28,884.71-13,347.86

Finding the Fourth Proportional to 19,287.62, 28,884.71 and 13,347.86

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Solution

The fourth proportional to 19,287.62, 28,884.71 and 13,347.86 is: 19,989.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,287.62 : 28,884.71 = 13,347.86 : x
  2. Step 2: Convert to fraction form
    19,287.62/28,884.71 = 13,347.86/x
  3. Step 3: Cross multiply
    19,287.62x = 28,884.71 × 13,347.86
  4. Step 4: Simplify right side
    19,287.62x = 385,548,962.38
  5. Step 5: Solve for x
    x = 385,548,962.38/19,287.62
  6. Step 6: Final answer
    x = 19,989.45

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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.