Home / 29,153.32-40,188.56-20,628.98

Finding the Fourth Proportional to 29,153.32, 40,188.56 and 20,628.98

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Solution

The fourth proportional to 29,153.32, 40,188.56 and 20,628.98 is: 28,437.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,153.32 : 40,188.56 = 20,628.98 : x
  2. Step 2: Convert to fraction form
    29,153.32/40,188.56 = 20,628.98/x
  3. Step 3: Cross multiply
    29,153.32x = 40,188.56 × 20,628.98
  4. Step 4: Simplify right side
    29,153.32x = 829,048,847.09
  5. Step 5: Solve for x
    x = 829,048,847.09/29,153.32
  6. Step 6: Final answer
    x = 28,437.55

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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.