Home / 21,743.64-30,019.32-14,948.64

Finding the Fourth Proportional to 21,743.64, 30,019.32 and 14,948.64

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Solution

The fourth proportional to 21,743.64, 30,019.32 and 14,948.64 is: 20,638.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,743.64 : 30,019.32 = 14,948.64 : x
  2. Step 2: Convert to fraction form
    21,743.64/30,019.32 = 14,948.64/x
  3. Step 3: Cross multiply
    21,743.64x = 30,019.32 × 14,948.64
  4. Step 4: Simplify right side
    21,743.64x = 448,748,007.72
  5. Step 5: Solve for x
    x = 448,748,007.72/21,743.64
  6. Step 6: Final answer
    x = 20,638.13

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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.