Home / 43,158.04-64,737.90-11,992.84

Finding the Fourth Proportional to 43,158.04, 64,737.90 and 11,992.84

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Solution

The fourth proportional to 43,158.04, 64,737.90 and 11,992.84 is: 17,989.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,158.04 : 64,737.90 = 11,992.84 : x
  2. Step 2: Convert to fraction form
    43,158.04/64,737.90 = 11,992.84/x
  3. Step 3: Cross multiply
    43,158.04x = 64,737.90 × 11,992.84
  4. Step 4: Simplify right side
    43,158.04x = 776,391,276.64
  5. Step 5: Solve for x
    x = 776,391,276.64/43,158.04
  6. Step 6: Final answer
    x = 17,989.49

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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.