Home / 29,628.96-40,870.20-19,557.60

Finding the Fourth Proportional to 29,628.96, 40,870.20 and 19,557.60

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Solution

The fourth proportional to 29,628.96, 40,870.20 and 19,557.60 is: 26,977.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,628.96 : 40,870.20 = 19,557.60 : x
  2. Step 2: Convert to fraction form
    29,628.96/40,870.20 = 19,557.60/x
  3. Step 3: Cross multiply
    29,628.96x = 40,870.20 × 19,557.60
  4. Step 4: Simplify right side
    29,628.96x = 799,323,023.52
  5. Step 5: Solve for x
    x = 799,323,023.52/29,628.96
  6. Step 6: Final answer
    x = 26,977.76

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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.