Home / 25,319.49-37,987.44-12,172.89

Finding the Fourth Proportional to 25,319.49, 37,987.44 and 12,172.89

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Solution

The fourth proportional to 25,319.49, 37,987.44 and 12,172.89 is: 18,263.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,319.49 : 37,987.44 = 12,172.89 : x
  2. Step 2: Convert to fraction form
    25,319.49/37,987.44 = 12,172.89/x
  3. Step 3: Cross multiply
    25,319.49x = 37,987.44 × 12,172.89
  4. Step 4: Simplify right side
    25,319.49x = 462,416,928.50
  5. Step 5: Solve for x
    x = 462,416,928.50/25,319.49
  6. Step 6: Final answer
    x = 18,263.28

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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.