Home / 42,362.96-63,585.75-20,191.64

Finding the Fourth Proportional to 42,362.96, 63,585.75 and 20,191.64

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Solution

The fourth proportional to 42,362.96, 63,585.75 and 20,191.64 is: 30,307.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,362.96 : 63,585.75 = 20,191.64 : x
  2. Step 2: Convert to fraction form
    42,362.96/63,585.75 = 20,191.64/x
  3. Step 3: Cross multiply
    42,362.96x = 63,585.75 × 20,191.64
  4. Step 4: Simplify right side
    42,362.96x = 1,283,900,573.13
  5. Step 5: Solve for x
    x = 1,283,900,573.13/42,362.96
  6. Step 6: Final answer
    x = 30,307.15

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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.