Home / 42,591.09-63,900.76-18,895.40

Finding the Fourth Proportional to 42,591.09, 63,900.76 and 18,895.40

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Solution

The fourth proportional to 42,591.09, 63,900.76 and 18,895.40 is: 28,349.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,591.09 : 63,900.76 = 18,895.40 : x
  2. Step 2: Convert to fraction form
    42,591.09/63,900.76 = 18,895.40/x
  3. Step 3: Cross multiply
    42,591.09x = 63,900.76 × 18,895.40
  4. Step 4: Simplify right side
    42,591.09x = 1,207,430,420.50
  5. Step 5: Solve for x
    x = 1,207,430,420.50/42,591.09
  6. Step 6: Final answer
    x = 28,349.37

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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.