Home / 20,962.19-28,928.37-11,531.00

Finding the Fourth Proportional to 20,962.19, 28,928.37 and 11,531.00

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Solution

The fourth proportional to 20,962.19, 28,928.37 and 11,531.00 is: 15,913.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,962.19 : 28,928.37 = 11,531.00 : x
  2. Step 2: Convert to fraction form
    20,962.19/28,928.37 = 11,531.00/x
  3. Step 3: Cross multiply
    20,962.19x = 28,928.37 × 11,531.00
  4. Step 4: Simplify right side
    20,962.19x = 333,572,889.83
  5. Step 5: Solve for x
    x = 333,572,889.83/20,962.19
  6. Step 6: Final answer
    x = 15,913.08

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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.