Home / 28,150.06-38,830.15-18,590.03

Finding the Fourth Proportional to 28,150.06, 38,830.15 and 18,590.03

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Solution

The fourth proportional to 28,150.06, 38,830.15 and 18,590.03 is: 25,643.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,150.06 : 38,830.15 = 18,590.03 : x
  2. Step 2: Convert to fraction form
    28,150.06/38,830.15 = 18,590.03/x
  3. Step 3: Cross multiply
    28,150.06x = 38,830.15 × 18,590.03
  4. Step 4: Simplify right side
    28,150.06x = 721,853,653.40
  5. Step 5: Solve for x
    x = 721,853,653.40/28,150.06
  6. Step 6: Final answer
    x = 25,643.06

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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.