Home / 28,324.06-42,486.10-12,730.76

Finding the Fourth Proportional to 28,324.06, 42,486.10 and 12,730.76

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Solution

The fourth proportional to 28,324.06, 42,486.10 and 12,730.76 is: 19,096.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,324.06 : 42,486.10 = 12,730.76 : x
  2. Step 2: Convert to fraction form
    28,324.06/42,486.10 = 12,730.76/x
  3. Step 3: Cross multiply
    28,324.06x = 42,486.10 × 12,730.76
  4. Step 4: Simplify right side
    28,324.06x = 540,880,342.44
  5. Step 5: Solve for x
    x = 540,880,342.44/28,324.06
  6. Step 6: Final answer
    x = 19,096.14

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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.