Home / 28,987.60-43,481.40-14,225.35

Finding the Fourth Proportional to 28,987.60, 43,481.40 and 14,225.35

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Solution

The fourth proportional to 28,987.60, 43,481.40 and 14,225.35 is: 21,338.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,987.60 : 43,481.40 = 14,225.35 : x
  2. Step 2: Convert to fraction form
    28,987.60/43,481.40 = 14,225.35/x
  3. Step 3: Cross multiply
    28,987.60x = 43,481.40 × 14,225.35
  4. Step 4: Simplify right side
    28,987.60x = 618,538,133.49
  5. Step 5: Solve for x
    x = 618,538,133.49/28,987.60
  6. Step 6: Final answer
    x = 21,338.03

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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.