Home / 38,570.20-53,227.56-21,803.20

Finding the Fourth Proportional to 38,570.20, 53,227.56 and 21,803.20

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Solution

The fourth proportional to 38,570.20, 53,227.56 and 21,803.20 is: 30,088.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,570.20 : 53,227.56 = 21,803.20 : x
  2. Step 2: Convert to fraction form
    38,570.20/53,227.56 = 21,803.20/x
  3. Step 3: Cross multiply
    38,570.20x = 53,227.56 × 21,803.20
  4. Step 4: Simplify right side
    38,570.20x = 1,160,531,136.19
  5. Step 5: Solve for x
    x = 1,160,531,136.19/38,570.20
  6. Step 6: Final answer
    x = 30,088.80

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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.