Home / 34,289.89-47,326.22-20,143.51

Finding the Fourth Proportional to 34,289.89, 47,326.22 and 20,143.51

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Solution

The fourth proportional to 34,289.89, 47,326.22 and 20,143.51 is: 27,801.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,289.89 : 47,326.22 = 20,143.51 : x
  2. Step 2: Convert to fraction form
    34,289.89/47,326.22 = 20,143.51/x
  3. Step 3: Cross multiply
    34,289.89x = 47,326.22 × 20,143.51
  4. Step 4: Simplify right side
    34,289.89x = 953,316,185.83
  5. Step 5: Solve for x
    x = 953,316,185.83/34,289.89
  6. Step 6: Final answer
    x = 27,801.67

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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.