Home / 19,025.31-28,537.96-12,686.79

Finding the Fourth Proportional to 19,025.31, 28,537.96 and 12,686.79

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Solution

The fourth proportional to 19,025.31, 28,537.96 and 12,686.79 is: 19,030.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,025.31 : 28,537.96 = 12,686.79 : x
  2. Step 2: Convert to fraction form
    19,025.31/28,537.96 = 12,686.79/x
  3. Step 3: Cross multiply
    19,025.31x = 28,537.96 × 12,686.79
  4. Step 4: Simplify right side
    19,025.31x = 362,054,931.14
  5. Step 5: Solve for x
    x = 362,054,931.14/19,025.31
  6. Step 6: Final answer
    x = 19,030.18

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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.