Home / 30,157.05-45,223.41-9,090.57

Finding the Fourth Proportional to 30,157.05, 45,223.41 and 9,090.57

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Solution

The fourth proportional to 30,157.05, 45,223.41 and 9,090.57 is: 13,632.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,157.05 : 45,223.41 = 9,090.57 : x
  2. Step 2: Convert to fraction form
    30,157.05/45,223.41 = 9,090.57/x
  3. Step 3: Cross multiply
    30,157.05x = 45,223.41 × 9,090.57
  4. Step 4: Simplify right side
    30,157.05x = 411,106,574.24
  5. Step 5: Solve for x
    x = 411,106,574.24/30,157.05
  6. Step 6: Final answer
    x = 13,632.19

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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.