Home / 21,637.68-29,859.66-12,077.07

Finding the Fourth Proportional to 21,637.68, 29,859.66 and 12,077.07

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Solution

The fourth proportional to 21,637.68, 29,859.66 and 12,077.07 is: 16,666.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,637.68 : 29,859.66 = 12,077.07 : x
  2. Step 2: Convert to fraction form
    21,637.68/29,859.66 = 12,077.07/x
  3. Step 3: Cross multiply
    21,637.68x = 29,859.66 × 12,077.07
  4. Step 4: Simplify right side
    21,637.68x = 360,617,204.00
  5. Step 5: Solve for x
    x = 360,617,204.00/21,637.68
  6. Step 6: Final answer
    x = 16,666.17

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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.