Home / 19,215-28,823.58-5,365.08

Finding the Fourth Proportional to 19,215, 28,823.58 and 5,365.08

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Solution

The fourth proportional to 19,215, 28,823.58 and 5,365.08 is: 8,047.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,215 : 28,823.58 = 5,365.08 : x
  2. Step 2: Convert to fraction form
    19,215/28,823.58 = 5,365.08/x
  3. Step 3: Cross multiply
    19,215x = 28,823.58 × 5,365.08
  4. Step 4: Simplify right side
    19,215x = 154,640,812.59
  5. Step 5: Solve for x
    x = 154,640,812.59/19,215
  6. Step 6: Final answer
    x = 8,047.92

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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.