Home / 39,670.51-54,748.84-21,769.00

Finding the Fourth Proportional to 39,670.51, 54,748.84 and 21,769.00

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Solution

The fourth proportional to 39,670.51, 54,748.84 and 21,769.00 is: 30,043.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,670.51 : 54,748.84 = 21,769.00 : x
  2. Step 2: Convert to fraction form
    39,670.51/54,748.84 = 21,769.00/x
  3. Step 3: Cross multiply
    39,670.51x = 54,748.84 × 21,769.00
  4. Step 4: Simplify right side
    39,670.51x = 1,191,827,224.22
  5. Step 5: Solve for x
    x = 1,191,827,224.22/39,670.51
  6. Step 6: Final answer
    x = 30,043.16

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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.