Home / 39,570.10-59,239.86-20,805.64

Finding the Fourth Proportional to 39,570.10, 59,239.86 and 20,805.64

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Solution

The fourth proportional to 39,570.10, 59,239.86 and 20,805.64 is: 31,147.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,570.10 : 59,239.86 = 20,805.64 : x
  2. Step 2: Convert to fraction form
    39,570.10/59,239.86 = 20,805.64/x
  3. Step 3: Cross multiply
    39,570.10x = 59,239.86 × 20,805.64
  4. Step 4: Simplify right side
    39,570.10x = 1,232,523,200.81
  5. Step 5: Solve for x
    x = 1,232,523,200.81/39,570.10
  6. Step 6: Final answer
    x = 31,147.84

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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.