Home / 38,395.66-52,984.34-21,400.59

Finding the Fourth Proportional to 38,395.66, 52,984.34 and 21,400.59

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Solution

The fourth proportional to 38,395.66, 52,984.34 and 21,400.59 is: 29,531.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,395.66 : 52,984.34 = 21,400.59 : x
  2. Step 2: Convert to fraction form
    38,395.66/52,984.34 = 21,400.59/x
  3. Step 3: Cross multiply
    38,395.66x = 52,984.34 × 21,400.59
  4. Step 4: Simplify right side
    38,395.66x = 1,133,896,136.76
  5. Step 5: Solve for x
    x = 1,133,896,136.76/38,395.66
  6. Step 6: Final answer
    x = 29,531.88

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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.