Home / 30,321.95-45,458.62-20,337.08

Finding the Fourth Proportional to 30,321.95, 45,458.62 and 20,337.08

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Solution

The fourth proportional to 30,321.95, 45,458.62 and 20,337.08 is: 30,489.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,321.95 : 45,458.62 = 20,337.08 : x
  2. Step 2: Convert to fraction form
    30,321.95/45,458.62 = 20,337.08/x
  3. Step 3: Cross multiply
    30,321.95x = 45,458.62 × 20,337.08
  4. Step 4: Simplify right side
    30,321.95x = 924,495,313.49
  5. Step 5: Solve for x
    x = 924,495,313.49/30,321.95
  6. Step 6: Final answer
    x = 30,489.31

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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.