Home / 28,360.99-42,547.83-8,641.09

Finding the Fourth Proportional to 28,360.99, 42,547.83 and 8,641.09

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Solution

The fourth proportional to 28,360.99, 42,547.83 and 8,641.09 is: 12,963.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,360.99 : 42,547.83 = 8,641.09 : x
  2. Step 2: Convert to fraction form
    28,360.99/42,547.83 = 8,641.09/x
  3. Step 3: Cross multiply
    28,360.99x = 42,547.83 × 8,641.09
  4. Step 4: Simplify right side
    28,360.99x = 367,659,628.33
  5. Step 5: Solve for x
    x = 367,659,628.33/28,360.99
  6. Step 6: Final answer
    x = 12,963.57

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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.