Home / 47,271.07-70,899.31-20,971.18

Finding the Fourth Proportional to 47,271.07, 70,899.31 and 20,971.18

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Solution

The fourth proportional to 47,271.07, 70,899.31 and 20,971.18 is: 31,453.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,271.07 : 70,899.31 = 20,971.18 : x
  2. Step 2: Convert to fraction form
    47,271.07/70,899.31 = 20,971.18/x
  3. Step 3: Cross multiply
    47,271.07x = 70,899.31 × 20,971.18
  4. Step 4: Simplify right side
    47,271.07x = 1,486,842,191.89
  5. Step 5: Solve for x
    x = 1,486,842,191.89/47,271.07
  6. Step 6: Final answer
    x = 31,453.53

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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.