Home / 35,427.03-53,136.70-10,128.05

Finding the Fourth Proportional to 35,427.03, 53,136.70 and 10,128.05

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Solution

The fourth proportional to 35,427.03, 53,136.70 and 10,128.05 is: 15,190.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,427.03 : 53,136.70 = 10,128.05 : x
  2. Step 2: Convert to fraction form
    35,427.03/53,136.70 = 10,128.05/x
  3. Step 3: Cross multiply
    35,427.03x = 53,136.70 × 10,128.05
  4. Step 4: Simplify right side
    35,427.03x = 538,171,123.17
  5. Step 5: Solve for x
    x = 538,171,123.17/35,427.03
  6. Step 6: Final answer
    x = 15,190.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.