Home / 30,042.80-45,069.12-9,266.28

Finding the Fourth Proportional to 30,042.80, 45,069.12 and 9,266.28

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Solution

The fourth proportional to 30,042.80, 45,069.12 and 9,266.28 is: 13,900.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,042.80 : 45,069.12 = 9,266.28 : x
  2. Step 2: Convert to fraction form
    30,042.80/45,069.12 = 9,266.28/x
  3. Step 3: Cross multiply
    30,042.80x = 45,069.12 × 9,266.28
  4. Step 4: Simplify right side
    30,042.80x = 417,623,085.27
  5. Step 5: Solve for x
    x = 417,623,085.27/30,042.80
  6. Step 6: Final answer
    x = 13,900.94

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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.