Home / 20,749.10-28,600.28-14,032.28

Finding the Fourth Proportional to 20,749.10, 28,600.28 and 14,032.28

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Solution

The fourth proportional to 20,749.10, 28,600.28 and 14,032.28 is: 19,341.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,749.10 : 28,600.28 = 14,032.28 : x
  2. Step 2: Convert to fraction form
    20,749.10/28,600.28 = 14,032.28/x
  3. Step 3: Cross multiply
    20,749.10x = 28,600.28 × 14,032.28
  4. Step 4: Simplify right side
    20,749.10x = 401,327,029.12
  5. Step 5: Solve for x
    x = 401,327,029.12/20,749.10
  6. Step 6: Final answer
    x = 19,341.91

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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.