Home / 19,219.50-28,831.14-5,368.50

Finding the Fourth Proportional to 19,219.50, 28,831.14 and 5,368.50

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Solution

The fourth proportional to 19,219.50, 28,831.14 and 5,368.50 is: 8,053.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,219.50 : 28,831.14 = 5,368.50 : x
  2. Step 2: Convert to fraction form
    19,219.50/28,831.14 = 5,368.50/x
  3. Step 3: Cross multiply
    19,219.50x = 28,831.14 × 5,368.50
  4. Step 4: Simplify right side
    19,219.50x = 154,779,975.09
  5. Step 5: Solve for x
    x = 154,779,975.09/19,219.50
  6. Step 6: Final answer
    x = 8,053.28

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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.