Home / 21,783.04-30,043.52-19,267.84

Finding the Fourth Proportional to 21,783.04, 30,043.52 and 19,267.84

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Solution

The fourth proportional to 21,783.04, 30,043.52 and 19,267.84 is: 26,574.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,783.04 : 30,043.52 = 19,267.84 : x
  2. Step 2: Convert to fraction form
    21,783.04/30,043.52 = 19,267.84/x
  3. Step 3: Cross multiply
    21,783.04x = 30,043.52 × 19,267.84
  4. Step 4: Simplify right side
    21,783.04x = 578,873,736.40
  5. Step 5: Solve for x
    x = 578,873,736.40/21,783.04
  6. Step 6: Final answer
    x = 26,574.52

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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.