Home / 28,416.51-39,210.75-15,841.26

Finding the Fourth Proportional to 28,416.51, 39,210.75 and 15,841.26

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Solution

The fourth proportional to 28,416.51, 39,210.75 and 15,841.26 is: 21,858.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,416.51 : 39,210.75 = 15,841.26 : x
  2. Step 2: Convert to fraction form
    28,416.51/39,210.75 = 15,841.26/x
  3. Step 3: Cross multiply
    28,416.51x = 39,210.75 × 15,841.26
  4. Step 4: Simplify right side
    28,416.51x = 621,147,685.55
  5. Step 5: Solve for x
    x = 621,147,685.55/28,416.51
  6. Step 6: Final answer
    x = 21,858.69

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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.