Home / 19,210.95-28,765.92-15,442.72

Finding the Fourth Proportional to 19,210.95, 28,765.92 and 15,442.72

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Solution

The fourth proportional to 19,210.95, 28,765.92 and 15,442.72 is: 23,123.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,210.95 : 28,765.92 = 15,442.72 : x
  2. Step 2: Convert to fraction form
    19,210.95/28,765.92 = 15,442.72/x
  3. Step 3: Cross multiply
    19,210.95x = 28,765.92 × 15,442.72
  4. Step 4: Simplify right side
    19,210.95x = 444,224,048.10
  5. Step 5: Solve for x
    x = 444,224,048.10/19,210.95
  6. Step 6: Final answer
    x = 23,123.48

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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.