Home / 28,301.64-42,435.78-10,772.70

Finding the Fourth Proportional to 28,301.64, 42,435.78 and 10,772.70

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Solution

The fourth proportional to 28,301.64, 42,435.78 and 10,772.70 is: 16,152.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,301.64 : 42,435.78 = 10,772.70 : x
  2. Step 2: Convert to fraction form
    28,301.64/42,435.78 = 10,772.70/x
  3. Step 3: Cross multiply
    28,301.64x = 42,435.78 × 10,772.70
  4. Step 4: Simplify right side
    28,301.64x = 457,147,927.21
  5. Step 5: Solve for x
    x = 457,147,927.21/28,301.64
  6. Step 6: Final answer
    x = 16,152.70

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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.