Home / 19,078.98-28,618.50-5,931.36

Finding the Fourth Proportional to 19,078.98, 28,618.50 and 5,931.36

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Solution

The fourth proportional to 19,078.98, 28,618.50 and 5,931.36 is: 8,897.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,078.98 : 28,618.50 = 5,931.36 : x
  2. Step 2: Convert to fraction form
    19,078.98/28,618.50 = 5,931.36/x
  3. Step 3: Cross multiply
    19,078.98x = 28,618.50 × 5,931.36
  4. Step 4: Simplify right side
    19,078.98x = 169,746,626.16
  5. Step 5: Solve for x
    x = 169,746,626.16/19,078.98
  6. Step 6: Final answer
    x = 8,897.05

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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.