Home / 38,211.50-52,735.02-21,216.80

Finding the Fourth Proportional to 38,211.50, 52,735.02 and 21,216.80

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Solution

The fourth proportional to 38,211.50, 52,735.02 and 21,216.80 is: 29,280.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,211.50 : 52,735.02 = 21,216.80 : x
  2. Step 2: Convert to fraction form
    38,211.50/52,735.02 = 21,216.80/x
  3. Step 3: Cross multiply
    38,211.50x = 52,735.02 × 21,216.80
  4. Step 4: Simplify right side
    38,211.50x = 1,118,868,372.34
  5. Step 5: Solve for x
    x = 1,118,868,372.34/38,211.50
  6. Step 6: Final answer
    x = 29,280.93

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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.