Home / 35,774.03-53,643.76-20,987.75

Finding the Fourth Proportional to 35,774.03, 53,643.76 and 20,987.75

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Solution

The fourth proportional to 35,774.03, 53,643.76 and 20,987.75 is: 31,471.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,774.03 : 53,643.76 = 20,987.75 : x
  2. Step 2: Convert to fraction form
    35,774.03/53,643.76 = 20,987.75/x
  3. Step 3: Cross multiply
    35,774.03x = 53,643.76 × 20,987.75
  4. Step 4: Simplify right side
    35,774.03x = 1,125,861,503.25
  5. Step 5: Solve for x
    x = 1,125,861,503.25/35,774.03
  6. Step 6: Final answer
    x = 31,471.48

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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.