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Finding the Fourth Proportional to 18,000.78, 24,841 and 10,043

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Solution

The fourth proportional to 18,000.78, 24,841 and 10,043 is: 13,859.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,000.78 : 24,841 = 10,043 : x
  2. Step 2: Convert to fraction form
    18,000.78/24,841 = 10,043/x
  3. Step 3: Cross multiply
    18,000.78x = 24,841 × 10,043
  4. Step 4: Simplify right side
    18,000.78x = 249,478,163
  5. Step 5: Solve for x
    x = 249,478,163/18,000.78
  6. Step 6: Final answer
    x = 13,859.30

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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.