Home / 19,771.22-29,515.78-19,079.18

Finding the Fourth Proportional to 19,771.22, 29,515.78 and 19,079.18

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Solution

The fourth proportional to 19,771.22, 29,515.78 and 19,079.18 is: 28,482.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,771.22 : 29,515.78 = 19,079.18 : x
  2. Step 2: Convert to fraction form
    19,771.22/29,515.78 = 19,079.18/x
  3. Step 3: Cross multiply
    19,771.22x = 29,515.78 × 19,079.18
  4. Step 4: Simplify right side
    19,771.22x = 563,136,879.46
  5. Step 5: Solve for x
    x = 563,136,879.46/19,771.22
  6. Step 6: Final answer
    x = 28,482.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.