Home / 21,802.51-30,079.69-14,253.18

Finding the Fourth Proportional to 21,802.51, 30,079.69 and 14,253.18

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Solution

The fourth proportional to 21,802.51, 30,079.69 and 14,253.18 is: 19,664.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,802.51 : 30,079.69 = 14,253.18 : x
  2. Step 2: Convert to fraction form
    21,802.51/30,079.69 = 14,253.18/x
  3. Step 3: Cross multiply
    21,802.51x = 30,079.69 × 14,253.18
  4. Step 4: Simplify right side
    21,802.51x = 428,731,235.91
  5. Step 5: Solve for x
    x = 428,731,235.91/21,802.51
  6. Step 6: Final answer
    x = 19,664.31

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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.