Home / 19,439.75-26,830.10-14,715.83

Finding the Fourth Proportional to 19,439.75, 26,830.10 and 14,715.83

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Solution

The fourth proportional to 19,439.75, 26,830.10 and 14,715.83 is: 20,310.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,439.75 : 26,830.10 = 14,715.83 : x
  2. Step 2: Convert to fraction form
    19,439.75/26,830.10 = 14,715.83/x
  3. Step 3: Cross multiply
    19,439.75x = 26,830.10 × 14,715.83
  4. Step 4: Simplify right side
    19,439.75x = 394,827,190.48
  5. Step 5: Solve for x
    x = 394,827,190.48/19,439.75
  6. Step 6: Final answer
    x = 20,310.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.