Home / 39,420.03-59,147.36-20,695.72

Finding the Fourth Proportional to 39,420.03, 59,147.36 and 20,695.72

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Solution

The fourth proportional to 39,420.03, 59,147.36 and 20,695.72 is: 31,052.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,420.03 : 59,147.36 = 20,695.72 : x
  2. Step 2: Convert to fraction form
    39,420.03/59,147.36 = 20,695.72/x
  3. Step 3: Cross multiply
    39,420.03x = 59,147.36 × 20,695.72
  4. Step 4: Simplify right side
    39,420.03x = 1,224,097,254.88
  5. Step 5: Solve for x
    x = 1,224,097,254.88/39,420.03
  6. Step 6: Final answer
    x = 31,052.67

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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.