Home / 28,498.36-39,326.52-15,750.89

Finding the Fourth Proportional to 28,498.36, 39,326.52 and 15,750.89

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Solution

The fourth proportional to 28,498.36, 39,326.52 and 15,750.89 is: 21,735.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,498.36 : 39,326.52 = 15,750.89 : x
  2. Step 2: Convert to fraction form
    28,498.36/39,326.52 = 15,750.89/x
  3. Step 3: Cross multiply
    28,498.36x = 39,326.52 × 15,750.89
  4. Step 4: Simplify right side
    28,498.36x = 619,427,415.22
  5. Step 5: Solve for x
    x = 619,427,415.22/28,498.36
  6. Step 6: Final answer
    x = 21,735.55

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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.