Home / 21,783.44-30,070.34-14,719.43

Finding the Fourth Proportional to 21,783.44, 30,070.34 and 14,719.43

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Solution

The fourth proportional to 21,783.44, 30,070.34 and 14,719.43 is: 20,319.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,783.44 : 30,070.34 = 14,719.43 : x
  2. Step 2: Convert to fraction form
    21,783.44/30,070.34 = 14,719.43/x
  3. Step 3: Cross multiply
    21,783.44x = 30,070.34 × 14,719.43
  4. Step 4: Simplify right side
    21,783.44x = 442,618,264.71
  5. Step 5: Solve for x
    x = 442,618,264.71/21,783.44
  6. Step 6: Final answer
    x = 20,319.03

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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.