Home / 15,822.40-21,837.52-12,039.52

Finding the Fourth Proportional to 15,822.40, 21,837.52 and 12,039.52

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Solution

The fourth proportional to 15,822.40, 21,837.52 and 12,039.52 is: 16,616.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,822.40 : 21,837.52 = 12,039.52 : x
  2. Step 2: Convert to fraction form
    15,822.40/21,837.52 = 12,039.52/x
  3. Step 3: Cross multiply
    15,822.40x = 21,837.52 × 12,039.52
  4. Step 4: Simplify right side
    15,822.40x = 262,913,258.79
  5. Step 5: Solve for x
    x = 262,913,258.79/15,822.40
  6. Step 6: Final answer
    x = 16,616.52

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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.