Home / 28,480.19-39,290.60-19,051.79

Finding the Fourth Proportional to 28,480.19, 39,290.60 and 19,051.79

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Solution

The fourth proportional to 28,480.19, 39,290.60 and 19,051.79 is: 26,283.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,480.19 : 39,290.60 = 19,051.79 : x
  2. Step 2: Convert to fraction form
    28,480.19/39,290.60 = 19,051.79/x
  3. Step 3: Cross multiply
    28,480.19x = 39,290.60 × 19,051.79
  4. Step 4: Simplify right side
    28,480.19x = 748,556,111.35
  5. Step 5: Solve for x
    x = 748,556,111.35/28,480.19
  6. Step 6: Final answer
    x = 26,283.40

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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.