Home / 20,458.75-30,660.13-15,457.01

Finding the Fourth Proportional to 20,458.75, 30,660.13 and 15,457.01

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Solution

The fourth proportional to 20,458.75, 30,660.13 and 15,457.01 is: 23,164.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,458.75 : 30,660.13 = 15,457.01 : x
  2. Step 2: Convert to fraction form
    20,458.75/30,660.13 = 15,457.01/x
  3. Step 3: Cross multiply
    20,458.75x = 30,660.13 × 15,457.01
  4. Step 4: Simplify right side
    20,458.75x = 473,913,887.55
  5. Step 5: Solve for x
    x = 473,913,887.55/20,458.75
  6. Step 6: Final answer
    x = 23,164.36

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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.