Home / 21,048.34-29,039.26-13,498.74

Finding the Fourth Proportional to 21,048.34, 29,039.26 and 13,498.74

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Solution

The fourth proportional to 21,048.34, 29,039.26 and 13,498.74 is: 18,623.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,048.34 : 29,039.26 = 13,498.74 : x
  2. Step 2: Convert to fraction form
    21,048.34/29,039.26 = 13,498.74/x
  3. Step 3: Cross multiply
    21,048.34x = 29,039.26 × 13,498.74
  4. Step 4: Simplify right side
    21,048.34x = 391,993,555.02
  5. Step 5: Solve for x
    x = 391,993,555.02/21,048.34
  6. Step 6: Final answer
    x = 18,623.49

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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.