Home / 28,363.72-42,480.78-13,583.02

Finding the Fourth Proportional to 28,363.72, 42,480.78 and 13,583.02

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Solution

The fourth proportional to 28,363.72, 42,480.78 and 13,583.02 is: 20,343.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,363.72 : 42,480.78 = 13,583.02 : x
  2. Step 2: Convert to fraction form
    28,363.72/42,480.78 = 13,583.02/x
  3. Step 3: Cross multiply
    28,363.72x = 42,480.78 × 13,583.02
  4. Step 4: Simplify right side
    28,363.72x = 577,017,284.36
  5. Step 5: Solve for x
    x = 577,017,284.36/28,363.72
  6. Step 6: Final answer
    x = 20,343.50

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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.