Home / 28,172.37-42,255.30-7,397.49

Finding the Fourth Proportional to 28,172.37, 42,255.30 and 7,397.49

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Solution

The fourth proportional to 28,172.37, 42,255.30 and 7,397.49 is: 11,095.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,172.37 : 42,255.30 = 7,397.49 : x
  2. Step 2: Convert to fraction form
    28,172.37/42,255.30 = 7,397.49/x
  3. Step 3: Cross multiply
    28,172.37x = 42,255.30 × 7,397.49
  4. Step 4: Simplify right side
    28,172.37x = 312,583,159.20
  5. Step 5: Solve for x
    x = 312,583,159.20/28,172.37
  6. Step 6: Final answer
    x = 11,095.38

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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.