Home / 21,567.47-29,763.09-12,136.01

Finding the Fourth Proportional to 21,567.47, 29,763.09 and 12,136.01

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Solution

The fourth proportional to 21,567.47, 29,763.09 and 12,136.01 is: 16,747.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,567.47 : 29,763.09 = 12,136.01 : x
  2. Step 2: Convert to fraction form
    21,567.47/29,763.09 = 12,136.01/x
  3. Step 3: Cross multiply
    21,567.47x = 29,763.09 × 12,136.01
  4. Step 4: Simplify right side
    21,567.47x = 361,205,009.06
  5. Step 5: Solve for x
    x = 361,205,009.06/21,567.47
  6. Step 6: Final answer
    x = 16,747.68

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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.