Home / 30,028.81-45,042.64-8,968.91

Finding the Fourth Proportional to 30,028.81, 45,042.64 and 8,968.91

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Solution

The fourth proportional to 30,028.81, 45,042.64 and 8,968.91 is: 13,453.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,028.81 : 45,042.64 = 8,968.91 : x
  2. Step 2: Convert to fraction form
    30,028.81/45,042.64 = 8,968.91/x
  3. Step 3: Cross multiply
    30,028.81x = 45,042.64 × 8,968.91
  4. Step 4: Simplify right side
    30,028.81x = 403,983,384.32
  5. Step 5: Solve for x
    x = 403,983,384.32/30,028.81
  6. Step 6: Final answer
    x = 13,453.19

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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.