Home / 21,292.47-29,392.67-13,333.01

Finding the Fourth Proportional to 21,292.47, 29,392.67 and 13,333.01

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Solution

The fourth proportional to 21,292.47, 29,392.67 and 13,333.01 is: 18,405.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,292.47 : 29,392.67 = 13,333.01 : x
  2. Step 2: Convert to fraction form
    21,292.47/29,392.67 = 13,333.01/x
  3. Step 3: Cross multiply
    21,292.47x = 29,392.67 × 13,333.01
  4. Step 4: Simplify right side
    21,292.47x = 391,892,649.41
  5. Step 5: Solve for x
    x = 391,892,649.41/21,292.47
  6. Step 6: Final answer
    x = 18,405.22

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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.