Home / 30,278.04-45,401.80-9,214.04

Finding the Fourth Proportional to 30,278.04, 45,401.80 and 9,214.04

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Solution

The fourth proportional to 30,278.04, 45,401.80 and 9,214.04 is: 13,816.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,278.04 : 45,401.80 = 9,214.04 : x
  2. Step 2: Convert to fraction form
    30,278.04/45,401.80 = 9,214.04/x
  3. Step 3: Cross multiply
    30,278.04x = 45,401.80 × 9,214.04
  4. Step 4: Simplify right side
    30,278.04x = 418,333,955.20
  5. Step 5: Solve for x
    x = 418,333,955.20/30,278.04
  6. Step 6: Final answer
    x = 13,816.41

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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.