Home / 29,410.32-40,586.40-15,981.68

Finding the Fourth Proportional to 29,410.32, 40,586.40 and 15,981.68

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Solution

The fourth proportional to 29,410.32, 40,586.40 and 15,981.68 is: 22,054.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,410.32 : 40,586.40 = 15,981.68 : x
  2. Step 2: Convert to fraction form
    29,410.32/40,586.40 = 15,981.68/x
  3. Step 3: Cross multiply
    29,410.32x = 40,586.40 × 15,981.68
  4. Step 4: Simplify right side
    29,410.32x = 648,638,857.15
  5. Step 5: Solve for x
    x = 648,638,857.15/29,410.32
  6. Step 6: Final answer
    x = 22,054.80

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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.