Home / 34,081.12-47,034.10-20,653.56

Finding the Fourth Proportional to 34,081.12, 47,034.10 and 20,653.56

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Solution

The fourth proportional to 34,081.12, 47,034.10 and 20,653.56 is: 28,503.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,081.12 : 47,034.10 = 20,653.56 : x
  2. Step 2: Convert to fraction form
    34,081.12/47,034.10 = 20,653.56/x
  3. Step 3: Cross multiply
    34,081.12x = 47,034.10 × 20,653.56
  4. Step 4: Simplify right side
    34,081.12x = 971,421,606.40
  5. Step 5: Solve for x
    x = 971,421,606.40/34,081.12
  6. Step 6: Final answer
    x = 28,503.22

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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.