Home / 22,621.06-31,210.77-13,542.67

Finding the Fourth Proportional to 22,621.06, 31,210.77 and 13,542.67

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Solution

The fourth proportional to 22,621.06, 31,210.77 and 13,542.67 is: 18,685.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,621.06 : 31,210.77 = 13,542.67 : x
  2. Step 2: Convert to fraction form
    22,621.06/31,210.77 = 13,542.67/x
  3. Step 3: Cross multiply
    22,621.06x = 31,210.77 × 13,542.67
  4. Step 4: Simplify right side
    22,621.06x = 422,677,158.56
  5. Step 5: Solve for x
    x = 422,677,158.56/22,621.06
  6. Step 6: Final answer
    x = 18,685.12

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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.