Home / 30,521.30-45,782.57-20,058.03

Finding the Fourth Proportional to 30,521.30, 45,782.57 and 20,058.03

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Solution

The fourth proportional to 30,521.30, 45,782.57 and 20,058.03 is: 30,087.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,521.30 : 45,782.57 = 20,058.03 : x
  2. Step 2: Convert to fraction form
    30,521.30/45,782.57 = 20,058.03/x
  3. Step 3: Cross multiply
    30,521.30x = 45,782.57 × 20,058.03
  4. Step 4: Simplify right side
    30,521.30x = 918,308,062.25
  5. Step 5: Solve for x
    x = 918,308,062.25/30,521.30
  6. Step 6: Final answer
    x = 30,087.45

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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.