Home / 25,528.08-35,246.16-20,823.60

Finding the Fourth Proportional to 25,528.08, 35,246.16 and 20,823.60

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Solution

The fourth proportional to 25,528.08, 35,246.16 and 20,823.60 is: 28,750.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,528.08 : 35,246.16 = 20,823.60 : x
  2. Step 2: Convert to fraction form
    25,528.08/35,246.16 = 20,823.60/x
  3. Step 3: Cross multiply
    25,528.08x = 35,246.16 × 20,823.60
  4. Step 4: Simplify right side
    25,528.08x = 733,951,937.38
  5. Step 5: Solve for x
    x = 733,951,937.38/25,528.08
  6. Step 6: Final answer
    x = 28,750.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.