Home / 29,980.13-41,372.57-18,802.13

Finding the Fourth Proportional to 29,980.13, 41,372.57 and 18,802.13

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Solution

The fourth proportional to 29,980.13, 41,372.57 and 18,802.13 is: 25,946.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,980.13 : 41,372.57 = 18,802.13 : x
  2. Step 2: Convert to fraction form
    29,980.13/41,372.57 = 18,802.13/x
  3. Step 3: Cross multiply
    29,980.13x = 41,372.57 × 18,802.13
  4. Step 4: Simplify right side
    29,980.13x = 777,892,279.72
  5. Step 5: Solve for x
    x = 777,892,279.72/29,980.13
  6. Step 6: Final answer
    x = 25,946.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.