Home / 38,187.90-52,697.91-21,192.89

Finding the Fourth Proportional to 38,187.90, 52,697.91 and 21,192.89

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Solution

The fourth proportional to 38,187.90, 52,697.91 and 21,192.89 is: 29,245.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,187.90 : 52,697.91 = 21,192.89 : x
  2. Step 2: Convert to fraction form
    38,187.90/52,697.91 = 21,192.89/x
  3. Step 3: Cross multiply
    38,187.90x = 52,697.91 × 21,192.89
  4. Step 4: Simplify right side
    38,187.90x = 1,116,820,746.37
  5. Step 5: Solve for x
    x = 1,116,820,746.37/38,187.90
  6. Step 6: Final answer
    x = 29,245.41

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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.