Home / 43,931.49-65,887.35-20,216.29

Finding the Fourth Proportional to 43,931.49, 65,887.35 and 20,216.29

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Solution

The fourth proportional to 43,931.49, 65,887.35 and 20,216.29 is: 30,319.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,931.49 : 65,887.35 = 20,216.29 : x
  2. Step 2: Convert to fraction form
    43,931.49/65,887.35 = 20,216.29/x
  3. Step 3: Cross multiply
    43,931.49x = 65,887.35 × 20,216.29
  4. Step 4: Simplify right side
    43,931.49x = 1,331,997,774.93
  5. Step 5: Solve for x
    x = 1,331,997,774.93/43,931.49
  6. Step 6: Final answer
    x = 30,319.89

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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.