Home / 35,774.15-53,643.94-20,987.87

Finding the Fourth Proportional to 35,774.15, 53,643.94 and 20,987.87

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Solution

The fourth proportional to 35,774.15, 53,643.94 and 20,987.87 is: 31,471.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,774.15 : 53,643.94 = 20,987.87 : x
  2. Step 2: Convert to fraction form
    35,774.15/53,643.94 = 20,987.87/x
  3. Step 3: Cross multiply
    35,774.15x = 53,643.94 × 20,987.87
  4. Step 4: Simplify right side
    35,774.15x = 1,125,872,039.01
  5. Step 5: Solve for x
    x = 1,125,872,039.01/35,774.15
  6. Step 6: Final answer
    x = 31,471.66

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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.