Home / 32,861.65-45,353.78-18,715.81

Finding the Fourth Proportional to 32,861.65, 45,353.78 and 18,715.81

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Solution

The fourth proportional to 32,861.65, 45,353.78 and 18,715.81 is: 25,830.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,861.65 : 45,353.78 = 18,715.81 : x
  2. Step 2: Convert to fraction form
    32,861.65/45,353.78 = 18,715.81/x
  3. Step 3: Cross multiply
    32,861.65x = 45,353.78 × 18,715.81
  4. Step 4: Simplify right side
    32,861.65x = 848,832,729.26
  5. Step 5: Solve for x
    x = 848,832,729.26/32,861.65
  6. Step 6: Final answer
    x = 25,830.50

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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.