Home / 28,480.74-39,303.57-15,733.77

Finding the Fourth Proportional to 28,480.74, 39,303.57 and 15,733.77

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Solution

The fourth proportional to 28,480.74, 39,303.57 and 15,733.77 is: 21,712.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,480.74 : 39,303.57 = 15,733.77 : x
  2. Step 2: Convert to fraction form
    28,480.74/39,303.57 = 15,733.77/x
  3. Step 3: Cross multiply
    28,480.74x = 39,303.57 × 15,733.77
  4. Step 4: Simplify right side
    28,480.74x = 618,393,330.56
  5. Step 5: Solve for x
    x = 618,393,330.56/28,480.74
  6. Step 6: Final answer
    x = 21,712.68

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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.