Home / 21,783.94-30,026.90-14,698.06

Finding the Fourth Proportional to 21,783.94, 30,026.90 and 14,698.06

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Solution

The fourth proportional to 21,783.94, 30,026.90 and 14,698.06 is: 20,259.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,783.94 : 30,026.90 = 14,698.06 : x
  2. Step 2: Convert to fraction form
    21,783.94/30,026.90 = 14,698.06/x
  3. Step 3: Cross multiply
    21,783.94x = 30,026.90 × 14,698.06
  4. Step 4: Simplify right side
    21,783.94x = 441,337,177.81
  5. Step 5: Solve for x
    x = 441,337,177.81/21,783.94
  6. Step 6: Final answer
    x = 20,259.75

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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.