Home / 20,616.68-30,925.02-10,235.72

Finding the Fourth Proportional to 20,616.68, 30,925.02 and 10,235.72

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Solution

The fourth proportional to 20,616.68, 30,925.02 and 10,235.72 is: 15,353.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,616.68 : 30,925.02 = 10,235.72 : x
  2. Step 2: Convert to fraction form
    20,616.68/30,925.02 = 10,235.72/x
  3. Step 3: Cross multiply
    20,616.68x = 30,925.02 × 10,235.72
  4. Step 4: Simplify right side
    20,616.68x = 316,539,845.71
  5. Step 5: Solve for x
    x = 316,539,845.71/20,616.68
  6. Step 6: Final answer
    x = 15,353.58

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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.