Home / 22,430.94-30,730.50-21,590.16

Finding the Fourth Proportional to 22,430.94, 30,730.50 and 21,590.16

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Solution

The fourth proportional to 22,430.94, 30,730.50 and 21,590.16 is: 29,578.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,430.94 : 30,730.50 = 21,590.16 : x
  2. Step 2: Convert to fraction form
    22,430.94/30,730.50 = 21,590.16/x
  3. Step 3: Cross multiply
    22,430.94x = 30,730.50 × 21,590.16
  4. Step 4: Simplify right side
    22,430.94x = 663,476,411.88
  5. Step 5: Solve for x
    x = 663,476,411.88/22,430.94
  6. Step 6: Final answer
    x = 29,578.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.