Home / 30,237.80-45,356.79-9,178.01

Finding the Fourth Proportional to 30,237.80, 45,356.79 and 9,178.01

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Solution

The fourth proportional to 30,237.80, 45,356.79 and 9,178.01 is: 13,767.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,237.80 : 45,356.79 = 9,178.01 : x
  2. Step 2: Convert to fraction form
    30,237.80/45,356.79 = 9,178.01/x
  3. Step 3: Cross multiply
    30,237.80x = 45,356.79 × 9,178.01
  4. Step 4: Simplify right side
    30,237.80x = 416,285,072.19
  5. Step 5: Solve for x
    x = 416,285,072.19/30,237.80
  6. Step 6: Final answer
    x = 13,767.04

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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.