Home / 22,631.81-31,232.18-12,561.24

Finding the Fourth Proportional to 22,631.81, 31,232.18 and 12,561.24

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Solution

The fourth proportional to 22,631.81, 31,232.18 and 12,561.24 is: 17,334.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,631.81 : 31,232.18 = 12,561.24 : x
  2. Step 2: Convert to fraction form
    22,631.81/31,232.18 = 12,561.24/x
  3. Step 3: Cross multiply
    22,631.81x = 31,232.18 × 12,561.24
  4. Step 4: Simplify right side
    22,631.81x = 392,314,845.90
  5. Step 5: Solve for x
    x = 392,314,845.90/22,631.81
  6. Step 6: Final answer
    x = 17,334.67

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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.