Home / 28,698.40-39,603.73-15,951.18

Finding the Fourth Proportional to 28,698.40, 39,603.73 and 15,951.18

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Solution

The fourth proportional to 28,698.40, 39,603.73 and 15,951.18 is: 22,012.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,698.40 : 39,603.73 = 15,951.18 : x
  2. Step 2: Convert to fraction form
    28,698.40/39,603.73 = 15,951.18/x
  3. Step 3: Cross multiply
    28,698.40x = 39,603.73 × 15,951.18
  4. Step 4: Simplify right side
    28,698.40x = 631,726,225.90
  5. Step 5: Solve for x
    x = 631,726,225.90/28,698.40
  6. Step 6: Final answer
    x = 22,012.59

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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.