Home / 43,309.89-64,967.67-13,729.50

Finding the Fourth Proportional to 43,309.89, 64,967.67 and 13,729.50

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Solution

The fourth proportional to 43,309.89, 64,967.67 and 13,729.50 is: 20,595.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,309.89 : 64,967.67 = 13,729.50 : x
  2. Step 2: Convert to fraction form
    43,309.89/64,967.67 = 13,729.50/x
  3. Step 3: Cross multiply
    43,309.89x = 64,967.67 × 13,729.50
  4. Step 4: Simplify right side
    43,309.89x = 891,973,625.27
  5. Step 5: Solve for x
    x = 891,973,625.27/43,309.89
  6. Step 6: Final answer
    x = 20,595.15

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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.