Home / 19,769.61-29,621.60-13,913.91

Finding the Fourth Proportional to 19,769.61, 29,621.60 and 13,913.91

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Solution

The fourth proportional to 19,769.61, 29,621.60 and 13,913.91 is: 20,847.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,769.61 : 29,621.60 = 13,913.91 : x
  2. Step 2: Convert to fraction form
    19,769.61/29,621.60 = 13,913.91/x
  3. Step 3: Cross multiply
    19,769.61x = 29,621.60 × 13,913.91
  4. Step 4: Simplify right side
    19,769.61x = 412,152,276.46
  5. Step 5: Solve for x
    x = 412,152,276.46/19,769.61
  6. Step 6: Final answer
    x = 20,847.77

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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.