Home / 21,707.84-29,924.16-16,983.92

Finding the Fourth Proportional to 21,707.84, 29,924.16 and 16,983.92

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Solution

The fourth proportional to 21,707.84, 29,924.16 and 16,983.92 is: 23,412.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,707.84 : 29,924.16 = 16,983.92 : x
  2. Step 2: Convert to fraction form
    21,707.84/29,924.16 = 16,983.92/x
  3. Step 3: Cross multiply
    21,707.84x = 29,924.16 × 16,983.92
  4. Step 4: Simplify right side
    21,707.84x = 508,229,539.51
  5. Step 5: Solve for x
    x = 508,229,539.51/21,707.84
  6. Step 6: Final answer
    x = 23,412.26

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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.