Home / 38,136.77-52,627.80-21,140.70

Finding the Fourth Proportional to 38,136.77, 52,627.80 and 21,140.70

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Solution

The fourth proportional to 38,136.77, 52,627.80 and 21,140.70 is: 29,173.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,136.77 : 52,627.80 = 21,140.70 : x
  2. Step 2: Convert to fraction form
    38,136.77/52,627.80 = 21,140.70/x
  3. Step 3: Cross multiply
    38,136.77x = 52,627.80 × 21,140.70
  4. Step 4: Simplify right side
    38,136.77x = 1,112,588,531.46
  5. Step 5: Solve for x
    x = 1,112,588,531.46/38,136.77
  6. Step 6: Final answer
    x = 29,173.65

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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.