Home / 21,048.63-29,047.51-11,616.99

Finding the Fourth Proportional to 21,048.63, 29,047.51 and 11,616.99

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Solution

The fourth proportional to 21,048.63, 29,047.51 and 11,616.99 is: 16,031.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,048.63 : 29,047.51 = 11,616.99 : x
  2. Step 2: Convert to fraction form
    21,048.63/29,047.51 = 11,616.99/x
  3. Step 3: Cross multiply
    21,048.63x = 29,047.51 × 11,616.99
  4. Step 4: Simplify right side
    21,048.63x = 337,444,633.19
  5. Step 5: Solve for x
    x = 337,444,633.19/21,048.63
  6. Step 6: Final answer
    x = 16,031.67

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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.