Home / 30,040.80-45,066.12-9,264.28

Finding the Fourth Proportional to 30,040.80, 45,066.12 and 9,264.28

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Solution

The fourth proportional to 30,040.80, 45,066.12 and 9,264.28 is: 13,897.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,040.80 : 45,066.12 = 9,264.28 : x
  2. Step 2: Convert to fraction form
    30,040.80/45,066.12 = 9,264.28/x
  3. Step 3: Cross multiply
    30,040.80x = 45,066.12 × 9,264.28
  4. Step 4: Simplify right side
    30,040.80x = 417,505,154.19
  5. Step 5: Solve for x
    x = 417,505,154.19/30,040.80
  6. Step 6: Final answer
    x = 13,897.94

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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.