Home / 19,445.20-29,148.60-9,576.40

Finding the Fourth Proportional to 19,445.20, 29,148.60 and 9,576.40

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Solution

The fourth proportional to 19,445.20, 29,148.60 and 9,576.40 is: 14,355.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,445.20 : 29,148.60 = 9,576.40 : x
  2. Step 2: Convert to fraction form
    19,445.20/29,148.60 = 9,576.40/x
  3. Step 3: Cross multiply
    19,445.20x = 29,148.60 × 9,576.40
  4. Step 4: Simplify right side
    19,445.20x = 279,138,653.04
  5. Step 5: Solve for x
    x = 279,138,653.04/19,445.20
  6. Step 6: Final answer
    x = 14,355.14

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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.