Home / 47,019.68-70,511.72-18,930.16

Finding the Fourth Proportional to 47,019.68, 70,511.72 and 18,930.16

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Solution

The fourth proportional to 47,019.68, 70,511.72 and 18,930.16 is: 28,388.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,019.68 : 70,511.72 = 18,930.16 : x
  2. Step 2: Convert to fraction form
    47,019.68/70,511.72 = 18,930.16/x
  3. Step 3: Cross multiply
    47,019.68x = 70,511.72 × 18,930.16
  4. Step 4: Simplify right side
    47,019.68x = 1,334,798,141.48
  5. Step 5: Solve for x
    x = 1,334,798,141.48/47,019.68
  6. Step 6: Final answer
    x = 28,388.07

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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.