Home / 43,573.59-65,354.20-13,987.60

Finding the Fourth Proportional to 43,573.59, 65,354.20 and 13,987.60

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Solution

The fourth proportional to 43,573.59, 65,354.20 and 13,987.60 is: 20,979.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,573.59 : 65,354.20 = 13,987.60 : x
  2. Step 2: Convert to fraction form
    43,573.59/65,354.20 = 13,987.60/x
  3. Step 3: Cross multiply
    43,573.59x = 65,354.20 × 13,987.60
  4. Step 4: Simplify right side
    43,573.59x = 914,148,209.57
  5. Step 5: Solve for x
    x = 914,148,209.57/43,573.59
  6. Step 6: Final answer
    x = 20,979.41

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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.