Home / 19,689.48-29,488.86-12,573.23

Finding the Fourth Proportional to 19,689.48, 29,488.86 and 12,573.23

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Solution

The fourth proportional to 19,689.48, 29,488.86 and 12,573.23 is: 18,830.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,689.48 : 29,488.86 = 12,573.23 : x
  2. Step 2: Convert to fraction form
    19,689.48/29,488.86 = 12,573.23/x
  3. Step 3: Cross multiply
    19,689.48x = 29,488.86 × 12,573.23
  4. Step 4: Simplify right side
    19,689.48x = 370,770,071.77
  5. Step 5: Solve for x
    x = 370,770,071.77/19,689.48
  6. Step 6: Final answer
    x = 18,830.87

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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.