Home / 39,802.06-54,927.20-21,653.18

Finding the Fourth Proportional to 39,802.06, 54,927.20 and 21,653.18

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Solution

The fourth proportional to 39,802.06, 54,927.20 and 21,653.18 is: 29,881.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,802.06 : 54,927.20 = 21,653.18 : x
  2. Step 2: Convert to fraction form
    39,802.06/54,927.20 = 21,653.18/x
  3. Step 3: Cross multiply
    39,802.06x = 54,927.20 × 21,653.18
  4. Step 4: Simplify right side
    39,802.06x = 1,189,348,739.95
  5. Step 5: Solve for x
    x = 1,189,348,739.95/39,802.06
  6. Step 6: Final answer
    x = 29,881.59

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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.