Home / 21,483.34-29,647.23-11,923.40

Finding the Fourth Proportional to 21,483.34, 29,647.23 and 11,923.40

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Solution

The fourth proportional to 21,483.34, 29,647.23 and 11,923.40 is: 16,454.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,483.34 : 29,647.23 = 11,923.40 : x
  2. Step 2: Convert to fraction form
    21,483.34/29,647.23 = 11,923.40/x
  3. Step 3: Cross multiply
    21,483.34x = 29,647.23 × 11,923.40
  4. Step 4: Simplify right side
    21,483.34x = 353,495,782.18
  5. Step 5: Solve for x
    x = 353,495,782.18/21,483.34
  6. Step 6: Final answer
    x = 16,454.41

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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.