Home / 38,618.76-53,287.70-21,623.74

Finding the Fourth Proportional to 38,618.76, 53,287.70 and 21,623.74

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Solution

The fourth proportional to 38,618.76, 53,287.70 and 21,623.74 is: 29,837.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,618.76 : 53,287.70 = 21,623.74 : x
  2. Step 2: Convert to fraction form
    38,618.76/53,287.70 = 21,623.74/x
  3. Step 3: Cross multiply
    38,618.76x = 53,287.70 × 21,623.74
  4. Step 4: Simplify right side
    38,618.76x = 1,152,279,370.00
  5. Step 5: Solve for x
    x = 1,152,279,370.00/38,618.76
  6. Step 6: Final answer
    x = 29,837.30

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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.