Home / 21,627.10-29,828.10-14,911.18

Finding the Fourth Proportional to 21,627.10, 29,828.10 and 14,911.18

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Solution

The fourth proportional to 21,627.10, 29,828.10 and 14,911.18 is: 20,565.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,627.10 : 29,828.10 = 14,911.18 : x
  2. Step 2: Convert to fraction form
    21,627.10/29,828.10 = 14,911.18/x
  3. Step 3: Cross multiply
    21,627.10x = 29,828.10 × 14,911.18
  4. Step 4: Simplify right side
    21,627.10x = 444,772,168.16
  5. Step 5: Solve for x
    x = 444,772,168.16/21,627.10
  6. Step 6: Final answer
    x = 20,565.50

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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.