Home / 21,041.32-31,558.26-6,999.94

Finding the Fourth Proportional to 21,041.32, 31,558.26 and 6,999.94

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Solution

The fourth proportional to 21,041.32, 31,558.26 and 6,999.94 is: 10,498.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,041.32 : 31,558.26 = 6,999.94 : x
  2. Step 2: Convert to fraction form
    21,041.32/31,558.26 = 6,999.94/x
  3. Step 3: Cross multiply
    21,041.32x = 31,558.26 × 6,999.94
  4. Step 4: Simplify right side
    21,041.32x = 220,905,926.50
  5. Step 5: Solve for x
    x = 220,905,926.50/21,041.32
  6. Step 6: Final answer
    x = 10,498.67

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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.