Home / 28,504.77-39,336.32-15,758.28

Finding the Fourth Proportional to 28,504.77, 39,336.32 and 15,758.28

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Solution

The fourth proportional to 28,504.77, 39,336.32 and 15,758.28 is: 21,746.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,504.77 : 39,336.32 = 15,758.28 : x
  2. Step 2: Convert to fraction form
    28,504.77/39,336.32 = 15,758.28/x
  3. Step 3: Cross multiply
    28,504.77x = 39,336.32 × 15,758.28
  4. Step 4: Simplify right side
    28,504.77x = 619,872,887.32
  5. Step 5: Solve for x
    x = 619,872,887.32/28,504.77
  6. Step 6: Final answer
    x = 21,746.28

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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.