Home / 42,954.08-64,405.23-19,257.34

Finding the Fourth Proportional to 42,954.08, 64,405.23 and 19,257.34

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Solution

The fourth proportional to 42,954.08, 64,405.23 and 19,257.34 is: 28,874.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,954.08 : 64,405.23 = 19,257.34 : x
  2. Step 2: Convert to fraction form
    42,954.08/64,405.23 = 19,257.34/x
  3. Step 3: Cross multiply
    42,954.08x = 64,405.23 × 19,257.34
  4. Step 4: Simplify right side
    42,954.08x = 1,240,272,993.58
  5. Step 5: Solve for x
    x = 1,240,272,993.58/42,954.08
  6. Step 6: Final answer
    x = 28,874.40

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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.