Home / 38,188.32-57,298.80-20,670.56

Finding the Fourth Proportional to 38,188.32, 57,298.80 and 20,670.56

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Solution

The fourth proportional to 38,188.32, 57,298.80 and 20,670.56 is: 31,014.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,188.32 : 57,298.80 = 20,670.56 : x
  2. Step 2: Convert to fraction form
    38,188.32/57,298.80 = 20,670.56/x
  3. Step 3: Cross multiply
    38,188.32x = 57,298.80 × 20,670.56
  4. Step 4: Simplify right side
    38,188.32x = 1,184,398,283.33
  5. Step 5: Solve for x
    x = 1,184,398,283.33/38,188.32
  6. Step 6: Final answer
    x = 31,014.67

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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.