Home / 30,534.65-45,802.58-20,071.37

Finding the Fourth Proportional to 30,534.65, 45,802.58 and 20,071.37

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Solution

The fourth proportional to 30,534.65, 45,802.58 and 20,071.37 is: 30,107.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,534.65 : 45,802.58 = 20,071.37 : x
  2. Step 2: Convert to fraction form
    30,534.65/45,802.58 = 20,071.37/x
  3. Step 3: Cross multiply
    30,534.65x = 45,802.58 × 20,071.37
  4. Step 4: Simplify right side
    30,534.65x = 919,320,530.13
  5. Step 5: Solve for x
    x = 919,320,530.13/30,534.65
  6. Step 6: Final answer
    x = 30,107.45

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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.