Home / 28,623.95-42,943.25-8,902.68

Finding the Fourth Proportional to 28,623.95, 42,943.25 and 8,902.68

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Solution

The fourth proportional to 28,623.95, 42,943.25 and 8,902.68 is: 13,356.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,623.95 : 42,943.25 = 8,902.68 : x
  2. Step 2: Convert to fraction form
    28,623.95/42,943.25 = 8,902.68/x
  3. Step 3: Cross multiply
    28,623.95x = 42,943.25 × 8,902.68
  4. Step 4: Simplify right side
    28,623.95x = 382,310,012.91
  5. Step 5: Solve for x
    x = 382,310,012.91/28,623.95
  6. Step 6: Final answer
    x = 13,356.30

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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.