Home / 22,062.40-30,445.98-11,990.92

Finding the Fourth Proportional to 22,062.40, 30,445.98 and 11,990.92

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Solution

The fourth proportional to 22,062.40, 30,445.98 and 11,990.92 is: 16,547.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,062.40 : 30,445.98 = 11,990.92 : x
  2. Step 2: Convert to fraction form
    22,062.40/30,445.98 = 11,990.92/x
  3. Step 3: Cross multiply
    22,062.40x = 30,445.98 × 11,990.92
  4. Step 4: Simplify right side
    22,062.40x = 365,075,310.50
  5. Step 5: Solve for x
    x = 365,075,310.50/22,062.40
  6. Step 6: Final answer
    x = 16,547.40

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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.