Home / 22,529.08-31,090.32-12,457.68

Finding the Fourth Proportional to 22,529.08, 31,090.32 and 12,457.68

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Solution

The fourth proportional to 22,529.08, 31,090.32 and 12,457.68 is: 17,191.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,529.08 : 31,090.32 = 12,457.68 : x
  2. Step 2: Convert to fraction form
    22,529.08/31,090.32 = 12,457.68/x
  3. Step 3: Cross multiply
    22,529.08x = 31,090.32 × 12,457.68
  4. Step 4: Simplify right side
    22,529.08x = 387,313,257.66
  5. Step 5: Solve for x
    x = 387,313,257.66/22,529.08
  6. Step 6: Final answer
    x = 17,191.70

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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.