Home / 28,534.90-42,805.55-8,813.30

Finding the Fourth Proportional to 28,534.90, 42,805.55 and 8,813.30

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Solution

The fourth proportional to 28,534.90, 42,805.55 and 8,813.30 is: 13,220.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,534.90 : 42,805.55 = 8,813.30 : x
  2. Step 2: Convert to fraction form
    28,534.90/42,805.55 = 8,813.30/x
  3. Step 3: Cross multiply
    28,534.90x = 42,805.55 × 8,813.30
  4. Step 4: Simplify right side
    28,534.90x = 377,258,153.82
  5. Step 5: Solve for x
    x = 377,258,153.82/28,534.90
  6. Step 6: Final answer
    x = 13,220.94

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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.