Home / 21,024.57-29,012.87-11,948.76

Finding the Fourth Proportional to 21,024.57, 29,012.87 and 11,948.76

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Solution

The fourth proportional to 21,024.57, 29,012.87 and 11,948.76 is: 16,488.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,024.57 : 29,012.87 = 11,948.76 : x
  2. Step 2: Convert to fraction form
    21,024.57/29,012.87 = 11,948.76/x
  3. Step 3: Cross multiply
    21,024.57x = 29,012.87 × 11,948.76
  4. Step 4: Simplify right side
    21,024.57x = 346,667,820.54
  5. Step 5: Solve for x
    x = 346,667,820.54/21,024.57
  6. Step 6: Final answer
    x = 16,488.70

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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.