Home / 19,078.56-28,616.76-5,038.20

Finding the Fourth Proportional to 19,078.56, 28,616.76 and 5,038.20

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Solution

The fourth proportional to 19,078.56, 28,616.76 and 5,038.20 is: 7,557.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,078.56 : 28,616.76 = 5,038.20 : x
  2. Step 2: Convert to fraction form
    19,078.56/28,616.76 = 5,038.20/x
  3. Step 3: Cross multiply
    19,078.56x = 28,616.76 × 5,038.20
  4. Step 4: Simplify right side
    19,078.56x = 144,176,960.23
  5. Step 5: Solve for x
    x = 144,176,960.23/19,078.56
  6. Step 6: Final answer
    x = 7,557.01

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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.