Home / 30,640.32-45,927.72-15,845.40

Finding the Fourth Proportional to 30,640.32, 45,927.72 and 15,845.40

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Solution

The fourth proportional to 30,640.32, 45,927.72 and 15,845.40 is: 23,751.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,640.32 : 45,927.72 = 15,845.40 : x
  2. Step 2: Convert to fraction form
    30,640.32/45,927.72 = 15,845.40/x
  3. Step 3: Cross multiply
    30,640.32x = 45,927.72 × 15,845.40
  4. Step 4: Simplify right side
    30,640.32x = 727,743,094.49
  5. Step 5: Solve for x
    x = 727,743,094.49/30,640.32
  6. Step 6: Final answer
    x = 23,751.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.