Home / 21,649.33-29,880.53-12,701.53

Finding the Fourth Proportional to 21,649.33, 29,880.53 and 12,701.53

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Solution

The fourth proportional to 21,649.33, 29,880.53 and 12,701.53 is: 17,530.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,649.33 : 29,880.53 = 12,701.53 : x
  2. Step 2: Convert to fraction form
    21,649.33/29,880.53 = 12,701.53/x
  3. Step 3: Cross multiply
    21,649.33x = 29,880.53 × 12,701.53
  4. Step 4: Simplify right side
    21,649.33x = 379,528,448.21
  5. Step 5: Solve for x
    x = 379,528,448.21/21,649.33
  6. Step 6: Final answer
    x = 17,530.72

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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.