Home / 15,943.60-23,886.60-13,639.60

Finding the Fourth Proportional to 15,943.60, 23,886.60 and 13,639.60

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Solution

The fourth proportional to 15,943.60, 23,886.60 and 13,639.60 is: 20,434.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,943.60 : 23,886.60 = 13,639.60 : x
  2. Step 2: Convert to fraction form
    15,943.60/23,886.60 = 13,639.60/x
  3. Step 3: Cross multiply
    15,943.60x = 23,886.60 × 13,639.60
  4. Step 4: Simplify right side
    15,943.60x = 325,803,669.36
  5. Step 5: Solve for x
    x = 325,803,669.36/15,943.60
  6. Step 6: Final answer
    x = 20,434.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.