Home / 29,318.96-40,461.48-20,830.16

Finding the Fourth Proportional to 29,318.96, 40,461.48 and 20,830.16

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Solution

The fourth proportional to 29,318.96, 40,461.48 and 20,830.16 is: 28,746.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,318.96 : 40,461.48 = 20,830.16 : x
  2. Step 2: Convert to fraction form
    29,318.96/40,461.48 = 20,830.16/x
  3. Step 3: Cross multiply
    29,318.96x = 40,461.48 × 20,830.16
  4. Step 4: Simplify right side
    29,318.96x = 842,819,102.24
  5. Step 5: Solve for x
    x = 842,819,102.24/29,318.96
  6. Step 6: Final answer
    x = 28,746.56

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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.