Home / 19,389.52-29,069.70-13,133.80

Finding the Fourth Proportional to 19,389.52, 29,069.70 and 13,133.80

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Solution

The fourth proportional to 19,389.52, 29,069.70 and 13,133.80 is: 19,690.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,389.52 : 29,069.70 = 13,133.80 : x
  2. Step 2: Convert to fraction form
    19,389.52/29,069.70 = 13,133.80/x
  3. Step 3: Cross multiply
    19,389.52x = 29,069.70 × 13,133.80
  4. Step 4: Simplify right side
    19,389.52x = 381,795,625.86
  5. Step 5: Solve for x
    x = 381,795,625.86/19,389.52
  6. Step 6: Final answer
    x = 19,690.82

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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.