Home / 31,748.06-43,802.36-19,818.32

Finding the Fourth Proportional to 31,748.06, 43,802.36 and 19,818.32

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Solution

The fourth proportional to 31,748.06, 43,802.36 and 19,818.32 is: 27,343.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,748.06 : 43,802.36 = 19,818.32 : x
  2. Step 2: Convert to fraction form
    31,748.06/43,802.36 = 19,818.32/x
  3. Step 3: Cross multiply
    31,748.06x = 43,802.36 × 19,818.32
  4. Step 4: Simplify right side
    31,748.06x = 868,089,287.38
  5. Step 5: Solve for x
    x = 868,089,287.38/31,748.06
  6. Step 6: Final answer
    x = 27,343.06

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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.