Home / 30,220.16-45,338.44-9,159.35

Finding the Fourth Proportional to 30,220.16, 45,338.44 and 9,159.35

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Solution

The fourth proportional to 30,220.16, 45,338.44 and 9,159.35 is: 13,741.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,220.16 : 45,338.44 = 9,159.35 : x
  2. Step 2: Convert to fraction form
    30,220.16/45,338.44 = 9,159.35/x
  3. Step 3: Cross multiply
    30,220.16x = 45,338.44 × 9,159.35
  4. Step 4: Simplify right side
    30,220.16x = 415,270,640.41
  5. Step 5: Solve for x
    x = 415,270,640.41/30,220.16
  6. Step 6: Final answer
    x = 13,741.51

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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.