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Finding the Fourth Proportional to 32,915, 45,423.84 and 18,011

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Solution

The fourth proportional to 32,915, 45,423.84 and 18,011 is: 24,855.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,915 : 45,423.84 = 18,011 : x
  2. Step 2: Convert to fraction form
    32,915/45,423.84 = 18,011/x
  3. Step 3: Cross multiply
    32,915x = 45,423.84 × 18,011
  4. Step 4: Simplify right side
    32,915x = 818,128,782.24
  5. Step 5: Solve for x
    x = 818,128,782.24/32,915
  6. Step 6: Final answer
    x = 24,855.80

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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.