Home / 28,466.90-42,697.56-12,672.20

Finding the Fourth Proportional to 28,466.90, 42,697.56 and 12,672.20

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Solution

The fourth proportional to 28,466.90, 42,697.56 and 12,672.20 is: 19,007.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,466.90 : 42,697.56 = 12,672.20 : x
  2. Step 2: Convert to fraction form
    28,466.90/42,697.56 = 12,672.20/x
  3. Step 3: Cross multiply
    28,466.90x = 42,697.56 × 12,672.20
  4. Step 4: Simplify right side
    28,466.90x = 541,072,019.83
  5. Step 5: Solve for x
    x = 541,072,019.83/28,466.90
  6. Step 6: Final answer
    x = 19,007.06

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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.