Home / 21,586.96-29,792.28-12,637.36

Finding the Fourth Proportional to 21,586.96, 29,792.28 and 12,637.36

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Solution

The fourth proportional to 21,586.96, 29,792.28 and 12,637.36 is: 17,440.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,586.96 : 29,792.28 = 12,637.36 : x
  2. Step 2: Convert to fraction form
    21,586.96/29,792.28 = 12,637.36/x
  3. Step 3: Cross multiply
    21,586.96x = 29,792.28 × 12,637.36
  4. Step 4: Simplify right side
    21,586.96x = 376,495,767.58
  5. Step 5: Solve for x
    x = 376,495,767.58/21,586.96
  6. Step 6: Final answer
    x = 17,440.89

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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.