Home / 37,085.76-51,182.64-21,172.50

Finding the Fourth Proportional to 37,085.76, 51,182.64 and 21,172.50

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Solution

The fourth proportional to 37,085.76, 51,182.64 and 21,172.50 is: 29,220.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,085.76 : 51,182.64 = 21,172.50 : x
  2. Step 2: Convert to fraction form
    37,085.76/51,182.64 = 21,172.50/x
  3. Step 3: Cross multiply
    37,085.76x = 51,182.64 × 21,172.50
  4. Step 4: Simplify right side
    37,085.76x = 1,083,664,445.40
  5. Step 5: Solve for x
    x = 1,083,664,445.40/37,085.76
  6. Step 6: Final answer
    x = 29,220.50

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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.