Home / 19,620.10-29,404.55-9,088.90

Finding the Fourth Proportional to 19,620.10, 29,404.55 and 9,088.90

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Solution

The fourth proportional to 19,620.10, 29,404.55 and 9,088.90 is: 13,621.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,620.10 : 29,404.55 = 9,088.90 : x
  2. Step 2: Convert to fraction form
    19,620.10/29,404.55 = 9,088.90/x
  3. Step 3: Cross multiply
    19,620.10x = 29,404.55 × 9,088.90
  4. Step 4: Simplify right side
    19,620.10x = 267,255,014.50
  5. Step 5: Solve for x
    x = 267,255,014.50/19,620.10
  6. Step 6: Final answer
    x = 13,621.49

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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.