Home / 30,280.52-41,787.08-18,791.16

Finding the Fourth Proportional to 30,280.52, 41,787.08 and 18,791.16

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Solution

The fourth proportional to 30,280.52, 41,787.08 and 18,791.16 is: 25,931.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,280.52 : 41,787.08 = 18,791.16 : x
  2. Step 2: Convert to fraction form
    30,280.52/41,787.08 = 18,791.16/x
  3. Step 3: Cross multiply
    30,280.52x = 41,787.08 × 18,791.16
  4. Step 4: Simplify right side
    30,280.52x = 785,227,612.26
  5. Step 5: Solve for x
    x = 785,227,612.26/30,280.52
  6. Step 6: Final answer
    x = 25,931.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.