Home / 21,160.74-31,741.16-5,365.77

Finding the Fourth Proportional to 21,160.74, 31,741.16 and 5,365.77

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Solution

The fourth proportional to 21,160.74, 31,741.16 and 5,365.77 is: 8,048.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,160.74 : 31,741.16 = 5,365.77 : x
  2. Step 2: Convert to fraction form
    21,160.74/31,741.16 = 5,365.77/x
  3. Step 3: Cross multiply
    21,160.74x = 31,741.16 × 5,365.77
  4. Step 4: Simplify right side
    21,160.74x = 170,315,737.26
  5. Step 5: Solve for x
    x = 170,315,737.26/21,160.74
  6. Step 6: Final answer
    x = 8,048.67

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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.