Home / 21,410.40-29,552.28-12,459.64

Finding the Fourth Proportional to 21,410.40, 29,552.28 and 12,459.64

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Solution

The fourth proportional to 21,410.40, 29,552.28 and 12,459.64 is: 17,197.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,410.40 : 29,552.28 = 12,459.64 : x
  2. Step 2: Convert to fraction form
    21,410.40/29,552.28 = 12,459.64/x
  3. Step 3: Cross multiply
    21,410.40x = 29,552.28 × 12,459.64
  4. Step 4: Simplify right side
    21,410.40x = 368,210,769.98
  5. Step 5: Solve for x
    x = 368,210,769.98/21,410.40
  6. Step 6: Final answer
    x = 17,197.75

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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.