Home / 19,531.55-29,307.98-8,285.13

Finding the Fourth Proportional to 19,531.55, 29,307.98 and 8,285.13

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Solution

The fourth proportional to 19,531.55, 29,307.98 and 8,285.13 is: 12,432.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,531.55 : 29,307.98 = 8,285.13 : x
  2. Step 2: Convert to fraction form
    19,531.55/29,307.98 = 8,285.13/x
  3. Step 3: Cross multiply
    19,531.55x = 29,307.98 × 8,285.13
  4. Step 4: Simplify right side
    19,531.55x = 242,820,424.34
  5. Step 5: Solve for x
    x = 242,820,424.34/19,531.55
  6. Step 6: Final answer
    x = 12,432.21

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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.