Home / 21,440.04-32,160.78-19,005.18

Finding the Fourth Proportional to 21,440.04, 32,160.78 and 19,005.18

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Solution

The fourth proportional to 21,440.04, 32,160.78 and 19,005.18 is: 28,508.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,440.04 : 32,160.78 = 19,005.18 : x
  2. Step 2: Convert to fraction form
    21,440.04/32,160.78 = 19,005.18/x
  3. Step 3: Cross multiply
    21,440.04x = 32,160.78 × 19,005.18
  4. Step 4: Simplify right side
    21,440.04x = 611,221,412.84
  5. Step 5: Solve for x
    x = 611,221,412.84/21,440.04
  6. Step 6: Final answer
    x = 28,508.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.