Home / 28,624.07-42,943.43-8,902.80

Finding the Fourth Proportional to 28,624.07, 42,943.43 and 8,902.80

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Solution

The fourth proportional to 28,624.07, 42,943.43 and 8,902.80 is: 13,356.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,624.07 : 42,943.43 = 8,902.80 : x
  2. Step 2: Convert to fraction form
    28,624.07/42,943.43 = 8,902.80/x
  3. Step 3: Cross multiply
    28,624.07x = 42,943.43 × 8,902.80
  4. Step 4: Simplify right side
    28,624.07x = 382,316,790.86
  5. Step 5: Solve for x
    x = 382,316,790.86/28,624.07
  6. Step 6: Final answer
    x = 13,356.48

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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.