Home / 43,911.12-65,867.28-14,328.72

Finding the Fourth Proportional to 43,911.12, 65,867.28 and 14,328.72

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Solution

The fourth proportional to 43,911.12, 65,867.28 and 14,328.72 is: 21,493.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,911.12 : 65,867.28 = 14,328.72 : x
  2. Step 2: Convert to fraction form
    43,911.12/65,867.28 = 14,328.72/x
  3. Step 3: Cross multiply
    43,911.12x = 65,867.28 × 14,328.72
  4. Step 4: Simplify right side
    43,911.12x = 943,793,812.28
  5. Step 5: Solve for x
    x = 943,793,812.28/43,911.12
  6. Step 6: Final answer
    x = 21,493.28

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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.