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Finding the Fourth Proportional to 38,577.40, 57,866.10 and 10,875.40

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Solution

The fourth proportional to 38,577.40, 57,866.10 and 10,875.40 is: 16,313.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,577.40 : 57,866.10 = 10,875.40 : x
  2. Step 2: Convert to fraction form
    38,577.40/57,866.10 = 10,875.40/x
  3. Step 3: Cross multiply
    38,577.40x = 57,866.10 × 10,875.40
  4. Step 4: Simplify right side
    38,577.40x = 629,316,983.94
  5. Step 5: Solve for x
    x = 629,316,983.94/38,577.40
  6. Step 6: Final answer
    x = 16,313.10

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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.