Home / 21,053.39-29,053.69-11,621.95

Finding the Fourth Proportional to 21,053.39, 29,053.69 and 11,621.95

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Solution

The fourth proportional to 21,053.39, 29,053.69 and 11,621.95 is: 16,038.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,053.39 : 29,053.69 = 11,621.95 : x
  2. Step 2: Convert to fraction form
    21,053.39/29,053.69 = 11,621.95/x
  3. Step 3: Cross multiply
    21,053.39x = 29,053.69 × 11,621.95
  4. Step 4: Simplify right side
    21,053.39x = 337,660,430.81
  5. Step 5: Solve for x
    x = 337,660,430.81/21,053.39
  6. Step 6: Final answer
    x = 16,038.30

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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.