Home / 21,480.32-29,642.76-12,048.88

Finding the Fourth Proportional to 21,480.32, 29,642.76 and 12,048.88

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Solution

The fourth proportional to 21,480.32, 29,642.76 and 12,048.88 is: 16,627.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,480.32 : 29,642.76 = 12,048.88 : x
  2. Step 2: Convert to fraction form
    21,480.32/29,642.76 = 12,048.88/x
  3. Step 3: Cross multiply
    21,480.32x = 29,642.76 × 12,048.88
  4. Step 4: Simplify right side
    21,480.32x = 357,162,058.11
  5. Step 5: Solve for x
    x = 357,162,058.11/21,480.32
  6. Step 6: Final answer
    x = 16,627.41

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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.