Home / 21,208.07-29,258.75-12,253.93

Finding the Fourth Proportional to 21,208.07, 29,258.75 and 12,253.93

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Solution

The fourth proportional to 21,208.07, 29,258.75 and 12,253.93 is: 16,905.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,208.07 : 29,258.75 = 12,253.93 : x
  2. Step 2: Convert to fraction form
    21,208.07/29,258.75 = 12,253.93/x
  3. Step 3: Cross multiply
    21,208.07x = 29,258.75 × 12,253.93
  4. Step 4: Simplify right side
    21,208.07x = 358,534,631.88
  5. Step 5: Solve for x
    x = 358,534,631.88/21,208.07
  6. Step 6: Final answer
    x = 16,905.57

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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.