Home / 43,428.04-65,140.98-12,262.84

Finding the Fourth Proportional to 43,428.04, 65,140.98 and 12,262.84

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Solution

The fourth proportional to 43,428.04, 65,140.98 and 12,262.84 is: 18,393.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,428.04 : 65,140.98 = 12,262.84 : x
  2. Step 2: Convert to fraction form
    43,428.04/65,140.98 = 12,262.84/x
  3. Step 3: Cross multiply
    43,428.04x = 65,140.98 × 12,262.84
  4. Step 4: Simplify right side
    43,428.04x = 798,813,415.18
  5. Step 5: Solve for x
    x = 798,813,415.18/43,428.04
  6. Step 6: Final answer
    x = 18,393.96

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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.