Home / 21,478.33-29,641.58-12,047.50

Finding the Fourth Proportional to 21,478.33, 29,641.58 and 12,047.50

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Solution

The fourth proportional to 21,478.33, 29,641.58 and 12,047.50 is: 16,626.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,478.33 : 29,641.58 = 12,047.50 : x
  2. Step 2: Convert to fraction form
    21,478.33/29,641.58 = 12,047.50/x
  3. Step 3: Cross multiply
    21,478.33x = 29,641.58 × 12,047.50
  4. Step 4: Simplify right side
    21,478.33x = 357,106,935.05
  5. Step 5: Solve for x
    x = 357,106,935.05/21,478.33
  6. Step 6: Final answer
    x = 16,626.38

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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.