Home / 34,570.40-47,699.04-20,425.36

Finding the Fourth Proportional to 34,570.40, 47,699.04 and 20,425.36

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Solution

The fourth proportional to 34,570.40, 47,699.04 and 20,425.36 is: 28,182.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,570.40 : 47,699.04 = 20,425.36 : x
  2. Step 2: Convert to fraction form
    34,570.40/47,699.04 = 20,425.36/x
  3. Step 3: Cross multiply
    34,570.40x = 47,699.04 × 20,425.36
  4. Step 4: Simplify right side
    34,570.40x = 974,270,063.65
  5. Step 5: Solve for x
    x = 974,270,063.65/34,570.40
  6. Step 6: Final answer
    x = 28,182.20

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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.