Home / 32,228.64-44,478.72-21,640.32

Finding the Fourth Proportional to 32,228.64, 44,478.72 and 21,640.32

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Solution

The fourth proportional to 32,228.64, 44,478.72 and 21,640.32 is: 29,865.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,228.64 : 44,478.72 = 21,640.32 : x
  2. Step 2: Convert to fraction form
    32,228.64/44,478.72 = 21,640.32/x
  3. Step 3: Cross multiply
    32,228.64x = 44,478.72 × 21,640.32
  4. Step 4: Simplify right side
    32,228.64x = 962,533,733.99
  5. Step 5: Solve for x
    x = 962,533,733.99/32,228.64
  6. Step 6: Final answer
    x = 29,865.79

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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.