Home / 18,947.16-28,445.34-14,567.69

Finding the Fourth Proportional to 18,947.16, 28,445.34 and 14,567.69

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Solution

The fourth proportional to 18,947.16, 28,445.34 and 14,567.69 is: 21,870.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,947.16 : 28,445.34 = 14,567.69 : x
  2. Step 2: Convert to fraction form
    18,947.16/28,445.34 = 14,567.69/x
  3. Step 3: Cross multiply
    18,947.16x = 28,445.34 × 14,567.69
  4. Step 4: Simplify right side
    18,947.16x = 414,382,680.00
  5. Step 5: Solve for x
    x = 414,382,680.00/18,947.16
  6. Step 6: Final answer
    x = 21,870.44

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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.