Home / 35,969.86-49,638.62-20,871.51

Finding the Fourth Proportional to 35,969.86, 49,638.62 and 20,871.51

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Solution

The fourth proportional to 35,969.86, 49,638.62 and 20,871.51 is: 28,802.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,969.86 : 49,638.62 = 20,871.51 : x
  2. Step 2: Convert to fraction form
    35,969.86/49,638.62 = 20,871.51/x
  3. Step 3: Cross multiply
    35,969.86x = 49,638.62 × 20,871.51
  4. Step 4: Simplify right side
    35,969.86x = 1,036,032,702.35
  5. Step 5: Solve for x
    x = 1,036,032,702.35/35,969.86
  6. Step 6: Final answer
    x = 28,802.80

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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.