Home / 28,985.20-43,472.10-9,258.44

Finding the Fourth Proportional to 28,985.20, 43,472.10 and 9,258.44

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Solution

The fourth proportional to 28,985.20, 43,472.10 and 9,258.44 is: 13,885.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,985.20 : 43,472.10 = 9,258.44 : x
  2. Step 2: Convert to fraction form
    28,985.20/43,472.10 = 9,258.44/x
  3. Step 3: Cross multiply
    28,985.20x = 43,472.10 × 9,258.44
  4. Step 4: Simplify right side
    28,985.20x = 402,483,829.52
  5. Step 5: Solve for x
    x = 402,483,829.52/28,985.20
  6. Step 6: Final answer
    x = 13,885.84

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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.