Home / 19,280.60-28,901.70-8,874.20

Finding the Fourth Proportional to 19,280.60, 28,901.70 and 8,874.20

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Solution

The fourth proportional to 19,280.60, 28,901.70 and 8,874.20 is: 13,302.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,280.60 : 28,901.70 = 8,874.20 : x
  2. Step 2: Convert to fraction form
    19,280.60/28,901.70 = 8,874.20/x
  3. Step 3: Cross multiply
    19,280.60x = 28,901.70 × 8,874.20
  4. Step 4: Simplify right side
    19,280.60x = 256,479,466.14
  5. Step 5: Solve for x
    x = 256,479,466.14/19,280.60
  6. Step 6: Final answer
    x = 13,302.46

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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.