Home / 21,478.08-29,641.23-12,047.25

Finding the Fourth Proportional to 21,478.08, 29,641.23 and 12,047.25

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Solution

The fourth proportional to 21,478.08, 29,641.23 and 12,047.25 is: 16,626.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,478.08 : 29,641.23 = 12,047.25 : x
  2. Step 2: Convert to fraction form
    21,478.08/29,641.23 = 12,047.25/x
  3. Step 3: Cross multiply
    21,478.08x = 29,641.23 × 12,047.25
  4. Step 4: Simplify right side
    21,478.08x = 357,095,308.12
  5. Step 5: Solve for x
    x = 357,095,308.12/21,478.08
  6. Step 6: Final answer
    x = 16,626.03

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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.