Home / 43,311.40-64,967.10-13,738.30

Finding the Fourth Proportional to 43,311.40, 64,967.10 and 13,738.30

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Solution

The fourth proportional to 43,311.40, 64,967.10 and 13,738.30 is: 20,607.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,311.40 : 64,967.10 = 13,738.30 : x
  2. Step 2: Convert to fraction form
    43,311.40/64,967.10 = 13,738.30/x
  3. Step 3: Cross multiply
    43,311.40x = 64,967.10 × 13,738.30
  4. Step 4: Simplify right side
    43,311.40x = 892,537,509.93
  5. Step 5: Solve for x
    x = 892,537,509.93/43,311.40
  6. Step 6: Final answer
    x = 20,607.45

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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.