Home / 21,886.47-30,180.74-14,708.57

Finding the Fourth Proportional to 21,886.47, 30,180.74 and 14,708.57

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Solution

The fourth proportional to 21,886.47, 30,180.74 and 14,708.57 is: 20,282.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,886.47 : 30,180.74 = 14,708.57 : x
  2. Step 2: Convert to fraction form
    21,886.47/30,180.74 = 14,708.57/x
  3. Step 3: Cross multiply
    21,886.47x = 30,180.74 × 14,708.57
  4. Step 4: Simplify right side
    21,886.47x = 443,915,302.50
  5. Step 5: Solve for x
    x = 443,915,302.50/21,886.47
  6. Step 6: Final answer
    x = 20,282.64

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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.