Home / 28,370.07-39,150.36-15,622.98

Finding the Fourth Proportional to 28,370.07, 39,150.36 and 15,622.98

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Solution

The fourth proportional to 28,370.07, 39,150.36 and 15,622.98 is: 21,559.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,370.07 : 39,150.36 = 15,622.98 : x
  2. Step 2: Convert to fraction form
    28,370.07/39,150.36 = 15,622.98/x
  3. Step 3: Cross multiply
    28,370.07x = 39,150.36 × 15,622.98
  4. Step 4: Simplify right side
    28,370.07x = 611,645,291.27
  5. Step 5: Solve for x
    x = 611,645,291.27/28,370.07
  6. Step 6: Final answer
    x = 21,559.53

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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.