Home / 28,782.52-43,162.44-13,987.06

Finding the Fourth Proportional to 28,782.52, 43,162.44 and 13,987.06

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Solution

The fourth proportional to 28,782.52, 43,162.44 and 13,987.06 is: 20,975.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,782.52 : 43,162.44 = 13,987.06 : x
  2. Step 2: Convert to fraction form
    28,782.52/43,162.44 = 13,987.06/x
  3. Step 3: Cross multiply
    28,782.52x = 43,162.44 × 13,987.06
  4. Step 4: Simplify right side
    28,782.52x = 603,715,638.03
  5. Step 5: Solve for x
    x = 603,715,638.03/28,782.52
  6. Step 6: Final answer
    x = 20,975.08

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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.