Home / 21,055.95-29,050.65-12,100.19

Finding the Fourth Proportional to 21,055.95, 29,050.65 and 12,100.19

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Solution

The fourth proportional to 21,055.95, 29,050.65 and 12,100.19 is: 16,694.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,055.95 : 29,050.65 = 12,100.19 : x
  2. Step 2: Convert to fraction form
    21,055.95/29,050.65 = 12,100.19/x
  3. Step 3: Cross multiply
    21,055.95x = 29,050.65 × 12,100.19
  4. Step 4: Simplify right side
    21,055.95x = 351,518,239.37
  5. Step 5: Solve for x
    x = 351,518,239.37/21,055.95
  6. Step 6: Final answer
    x = 16,694.48

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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.