Home / 30,787.14-42,486.32-17,358.42

Finding the Fourth Proportional to 30,787.14, 42,486.32 and 17,358.42

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Solution

The fourth proportional to 30,787.14, 42,486.32 and 17,358.42 is: 23,954.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,787.14 : 42,486.32 = 17,358.42 : x
  2. Step 2: Convert to fraction form
    30,787.14/42,486.32 = 17,358.42/x
  3. Step 3: Cross multiply
    30,787.14x = 42,486.32 × 17,358.42
  4. Step 4: Simplify right side
    30,787.14x = 737,495,386.81
  5. Step 5: Solve for x
    x = 737,495,386.81/30,787.14
  6. Step 6: Final answer
    x = 23,954.66

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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.