Home / 39,206.64-58,803.84-12,909.12

Finding the Fourth Proportional to 39,206.64, 58,803.84 and 12,909.12

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Solution

The fourth proportional to 39,206.64, 58,803.84 and 12,909.12 is: 19,361.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,206.64 : 58,803.84 = 12,909.12 : x
  2. Step 2: Convert to fraction form
    39,206.64/58,803.84 = 12,909.12/x
  3. Step 3: Cross multiply
    39,206.64x = 58,803.84 × 12,909.12
  4. Step 4: Simplify right side
    39,206.64x = 759,105,827.02
  5. Step 5: Solve for x
    x = 759,105,827.02/39,206.64
  6. Step 6: Final answer
    x = 19,361.66

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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.