Home / 19,784.64-29,639.67-15,380.70

Finding the Fourth Proportional to 19,784.64, 29,639.67 and 15,380.70

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Solution

The fourth proportional to 19,784.64, 29,639.67 and 15,380.70 is: 23,042.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,784.64 : 29,639.67 = 15,380.70 : x
  2. Step 2: Convert to fraction form
    19,784.64/29,639.67 = 15,380.70/x
  3. Step 3: Cross multiply
    19,784.64x = 29,639.67 × 15,380.70
  4. Step 4: Simplify right side
    19,784.64x = 455,878,872.37
  5. Step 5: Solve for x
    x = 455,878,872.37/19,784.64
  6. Step 6: Final answer
    x = 23,042.06

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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.