Home / 19,811.59-29,718.95-5,771.84

Finding the Fourth Proportional to 19,811.59, 29,718.95 and 5,771.84

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Solution

The fourth proportional to 19,811.59, 29,718.95 and 5,771.84 is: 8,658.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,811.59 : 29,718.95 = 5,771.84 : x
  2. Step 2: Convert to fraction form
    19,811.59/29,718.95 = 5,771.84/x
  3. Step 3: Cross multiply
    19,811.59x = 29,718.95 × 5,771.84
  4. Step 4: Simplify right side
    19,811.59x = 171,532,846.91
  5. Step 5: Solve for x
    x = 171,532,846.91/19,811.59
  6. Step 6: Final answer
    x = 8,658.21

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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.