Home / 28,301.25-39,055.70-15,555.26

Finding the Fourth Proportional to 28,301.25, 39,055.70 and 15,555.26

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Solution

The fourth proportional to 28,301.25, 39,055.70 and 15,555.26 is: 21,466.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,301.25 : 39,055.70 = 15,555.26 : x
  2. Step 2: Convert to fraction form
    28,301.25/39,055.70 = 15,555.26/x
  3. Step 3: Cross multiply
    28,301.25x = 39,055.70 × 15,555.26
  4. Step 4: Simplify right side
    28,301.25x = 607,521,704.51
  5. Step 5: Solve for x
    x = 607,521,704.51/28,301.25
  6. Step 6: Final answer
    x = 21,466.25

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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.