Home / 43,315.04-64,966.80-12,152.72

Finding the Fourth Proportional to 43,315.04, 64,966.80 and 12,152.72

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Solution

The fourth proportional to 43,315.04, 64,966.80 and 12,152.72 is: 18,227.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,315.04 : 64,966.80 = 12,152.72 : x
  2. Step 2: Convert to fraction form
    43,315.04/64,966.80 = 12,152.72/x
  3. Step 3: Cross multiply
    43,315.04x = 64,966.80 × 12,152.72
  4. Step 4: Simplify right side
    43,315.04x = 789,523,329.70
  5. Step 5: Solve for x
    x = 789,523,329.70/43,315.04
  6. Step 6: Final answer
    x = 18,227.46

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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.