Home / 23,457.79-35,210.39-20,806.76

Finding the Fourth Proportional to 23,457.79, 35,210.39 and 20,806.76

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Solution

The fourth proportional to 23,457.79, 35,210.39 and 20,806.76 is: 31,231.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,457.79 : 35,210.39 = 20,806.76 : x
  2. Step 2: Convert to fraction form
    23,457.79/35,210.39 = 20,806.76/x
  3. Step 3: Cross multiply
    23,457.79x = 35,210.39 × 20,806.76
  4. Step 4: Simplify right side
    23,457.79x = 732,614,134.24
  5. Step 5: Solve for x
    x = 732,614,134.24/23,457.79
  6. Step 6: Final answer
    x = 31,231.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.