Home / 39,858.81-59,715.30-18,816.24

Finding the Fourth Proportional to 39,858.81, 59,715.30 and 18,816.24

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Solution

The fourth proportional to 39,858.81, 59,715.30 and 18,816.24 is: 28,189.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,858.81 : 59,715.30 = 18,816.24 : x
  2. Step 2: Convert to fraction form
    39,858.81/59,715.30 = 18,816.24/x
  3. Step 3: Cross multiply
    39,858.81x = 59,715.30 × 18,816.24
  4. Step 4: Simplify right side
    39,858.81x = 1,123,617,416.47
  5. Step 5: Solve for x
    x = 1,123,617,416.47/39,858.81
  6. Step 6: Final answer
    x = 28,189.94

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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.