Home / 20,307.60-30,460.32-6,455.52

Finding the Fourth Proportional to 20,307.60, 30,460.32 and 6,455.52

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Solution

The fourth proportional to 20,307.60, 30,460.32 and 6,455.52 is: 9,682.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,307.60 : 30,460.32 = 6,455.52 : x
  2. Step 2: Convert to fraction form
    20,307.60/30,460.32 = 6,455.52/x
  3. Step 3: Cross multiply
    20,307.60x = 30,460.32 × 6,455.52
  4. Step 4: Simplify right side
    20,307.60x = 196,637,204.97
  5. Step 5: Solve for x
    x = 196,637,204.97/20,307.60
  6. Step 6: Final answer
    x = 9,682.94

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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.