Home / 28,621.42-42,931.64-7,844.92

Finding the Fourth Proportional to 28,621.42, 42,931.64 and 7,844.92

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Solution

The fourth proportional to 28,621.42, 42,931.64 and 7,844.92 is: 11,767.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,621.42 : 42,931.64 = 7,844.92 : x
  2. Step 2: Convert to fraction form
    28,621.42/42,931.64 = 7,844.92/x
  3. Step 3: Cross multiply
    28,621.42x = 42,931.64 × 7,844.92
  4. Step 4: Simplify right side
    28,621.42x = 336,795,281.27
  5. Step 5: Solve for x
    x = 336,795,281.27/28,621.42
  6. Step 6: Final answer
    x = 11,767.25

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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.