Home / 30,435.33-45,590.12-17,916.78

Finding the Fourth Proportional to 30,435.33, 45,590.12 and 17,916.78

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Solution

The fourth proportional to 30,435.33, 45,590.12 and 17,916.78 is: 26,838.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,435.33 : 45,590.12 = 17,916.78 : x
  2. Step 2: Convert to fraction form
    30,435.33/45,590.12 = 17,916.78/x
  3. Step 3: Cross multiply
    30,435.33x = 45,590.12 × 17,916.78
  4. Step 4: Simplify right side
    30,435.33x = 816,828,060.63
  5. Step 5: Solve for x
    x = 816,828,060.63/30,435.33
  6. Step 6: Final answer
    x = 26,838.15

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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.