Home / 21,299.34-29,392.02-12,349.64

Finding the Fourth Proportional to 21,299.34, 29,392.02 and 12,349.64

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Solution

The fourth proportional to 21,299.34, 29,392.02 and 12,349.64 is: 17,041.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,299.34 : 29,392.02 = 12,349.64 : x
  2. Step 2: Convert to fraction form
    21,299.34/29,392.02 = 12,349.64/x
  3. Step 3: Cross multiply
    21,299.34x = 29,392.02 × 12,349.64
  4. Step 4: Simplify right side
    21,299.34x = 362,980,865.87
  5. Step 5: Solve for x
    x = 362,980,865.87/21,299.34
  6. Step 6: Final answer
    x = 17,041.88

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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.