Home / 21,637.46-29,859.74-12,683.18

Finding the Fourth Proportional to 21,637.46, 29,859.74 and 12,683.18

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Solution

The fourth proportional to 21,637.46, 29,859.74 and 12,683.18 is: 17,502.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,637.46 : 29,859.74 = 12,683.18 : x
  2. Step 2: Convert to fraction form
    21,637.46/29,859.74 = 12,683.18/x
  3. Step 3: Cross multiply
    21,637.46x = 29,859.74 × 12,683.18
  4. Step 4: Simplify right side
    21,637.46x = 378,716,515.97
  5. Step 5: Solve for x
    x = 378,716,515.97/21,637.46
  6. Step 6: Final answer
    x = 17,502.82

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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.