Home / 21,509.01-29,682.23-12,077.37

Finding the Fourth Proportional to 21,509.01, 29,682.23 and 12,077.37

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Solution

The fourth proportional to 21,509.01, 29,682.23 and 12,077.37 is: 16,666.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,509.01 : 29,682.23 = 12,077.37 : x
  2. Step 2: Convert to fraction form
    21,509.01/29,682.23 = 12,077.37/x
  3. Step 3: Cross multiply
    21,509.01x = 29,682.23 × 12,077.37
  4. Step 4: Simplify right side
    21,509.01x = 358,483,213.75
  5. Step 5: Solve for x
    x = 358,483,213.75/21,509.01
  6. Step 6: Final answer
    x = 16,666.65

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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.