Home / 30,103.60-45,155.40-14,522.80

Finding the Fourth Proportional to 30,103.60, 45,155.40 and 14,522.80

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Solution

The fourth proportional to 30,103.60, 45,155.40 and 14,522.80 is: 21,784.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,103.60 : 45,155.40 = 14,522.80 : x
  2. Step 2: Convert to fraction form
    30,103.60/45,155.40 = 14,522.80/x
  3. Step 3: Cross multiply
    30,103.60x = 45,155.40 × 14,522.80
  4. Step 4: Simplify right side
    30,103.60x = 655,782,843.12
  5. Step 5: Solve for x
    x = 655,782,843.12/30,103.60
  6. Step 6: Final answer
    x = 21,784.20

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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.