Home / 30,032.90-45,071.79-11,331.38

Finding the Fourth Proportional to 30,032.90, 45,071.79 and 11,331.38

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Solution

The fourth proportional to 30,032.90, 45,071.79 and 11,331.38 is: 17,005.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,032.90 : 45,071.79 = 11,331.38 : x
  2. Step 2: Convert to fraction form
    30,032.90/45,071.79 = 11,331.38/x
  3. Step 3: Cross multiply
    30,032.90x = 45,071.79 × 11,331.38
  4. Step 4: Simplify right side
    30,032.90x = 510,725,579.77
  5. Step 5: Solve for x
    x = 510,725,579.77/30,032.90
  6. Step 6: Final answer
    x = 17,005.54

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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.