Home / 29,581.74-40,813.11-21,085.20

Finding the Fourth Proportional to 29,581.74, 40,813.11 and 21,085.20

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Solution

The fourth proportional to 29,581.74, 40,813.11 and 21,085.20 is: 29,090.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,581.74 : 40,813.11 = 21,085.20 : x
  2. Step 2: Convert to fraction form
    29,581.74/40,813.11 = 21,085.20/x
  3. Step 3: Cross multiply
    29,581.74x = 40,813.11 × 21,085.20
  4. Step 4: Simplify right side
    29,581.74x = 860,552,586.97
  5. Step 5: Solve for x
    x = 860,552,586.97/29,581.74
  6. Step 6: Final answer
    x = 29,090.67

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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.