Home / 28,970.34-43,346.16-19,121.55

Finding the Fourth Proportional to 28,970.34, 43,346.16 and 19,121.55

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Solution

The fourth proportional to 28,970.34, 43,346.16 and 19,121.55 is: 28,610.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,970.34 : 43,346.16 = 19,121.55 : x
  2. Step 2: Convert to fraction form
    28,970.34/43,346.16 = 19,121.55/x
  3. Step 3: Cross multiply
    28,970.34x = 43,346.16 × 19,121.55
  4. Step 4: Simplify right side
    28,970.34x = 828,845,765.75
  5. Step 5: Solve for x
    x = 828,845,765.75/28,970.34
  6. Step 6: Final answer
    x = 28,610.15

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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.