Home / 19,048.32-28,616.40-18,261

Finding the Fourth Proportional to 19,048.32, 28,616.40 and 18,261

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Solution

The fourth proportional to 19,048.32, 28,616.40 and 18,261 is: 27,433.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,048.32 : 28,616.40 = 18,261 : x
  2. Step 2: Convert to fraction form
    19,048.32/28,616.40 = 18,261/x
  3. Step 3: Cross multiply
    19,048.32x = 28,616.40 × 18,261
  4. Step 4: Simplify right side
    19,048.32x = 522,564,080.40
  5. Step 5: Solve for x
    x = 522,564,080.40/19,048.32
  6. Step 6: Final answer
    x = 27,433.60

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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.