Home / 22,529.40-31,089.31-12,457.23

Finding the Fourth Proportional to 22,529.40, 31,089.31 and 12,457.23

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Solution

The fourth proportional to 22,529.40, 31,089.31 and 12,457.23 is: 17,190.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,529.40 : 31,089.31 = 12,457.23 : x
  2. Step 2: Convert to fraction form
    22,529.40/31,089.31 = 12,457.23/x
  3. Step 3: Cross multiply
    22,529.40x = 31,089.31 × 12,457.23
  4. Step 4: Simplify right side
    22,529.40x = 387,286,685.21
  5. Step 5: Solve for x
    x = 387,286,685.21/22,529.40
  6. Step 6: Final answer
    x = 17,190.28

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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.