Home / 20,313.09-30,477.06-10,457.01

Finding the Fourth Proportional to 20,313.09, 30,477.06 and 10,457.01

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Solution

The fourth proportional to 20,313.09, 30,477.06 and 10,457.01 is: 15,689.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,313.09 : 30,477.06 = 10,457.01 : x
  2. Step 2: Convert to fraction form
    20,313.09/30,477.06 = 10,457.01/x
  3. Step 3: Cross multiply
    20,313.09x = 30,477.06 × 10,457.01
  4. Step 4: Simplify right side
    20,313.09x = 318,698,921.19
  5. Step 5: Solve for x
    x = 318,698,921.19/20,313.09
  6. Step 6: Final answer
    x = 15,689.34

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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.