Home / 22,341.06-30,830.70-12,909.63

Finding the Fourth Proportional to 22,341.06, 30,830.70 and 12,909.63

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Solution

The fourth proportional to 22,341.06, 30,830.70 and 12,909.63 is: 17,815.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,341.06 : 30,830.70 = 12,909.63 : x
  2. Step 2: Convert to fraction form
    22,341.06/30,830.70 = 12,909.63/x
  3. Step 3: Cross multiply
    22,341.06x = 30,830.70 × 12,909.63
  4. Step 4: Simplify right side
    22,341.06x = 398,012,929.64
  5. Step 5: Solve for x
    x = 398,012,929.64/22,341.06
  6. Step 6: Final answer
    x = 17,815.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.