Home / 38,987.03-53,802.41-21,524.90

Finding the Fourth Proportional to 38,987.03, 53,802.41 and 21,524.90

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Solution

The fourth proportional to 38,987.03, 53,802.41 and 21,524.90 is: 29,704.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,987.03 : 53,802.41 = 21,524.90 : x
  2. Step 2: Convert to fraction form
    38,987.03/53,802.41 = 21,524.90/x
  3. Step 3: Cross multiply
    38,987.03x = 53,802.41 × 21,524.90
  4. Step 4: Simplify right side
    38,987.03x = 1,158,091,495.01
  5. Step 5: Solve for x
    x = 1,158,091,495.01/38,987.03
  6. Step 6: Final answer
    x = 29,704.53

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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.