Home / 21,838.56-32,770.55-9,187.40

Finding the Fourth Proportional to 21,838.56, 32,770.55 and 9,187.40

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Solution

The fourth proportional to 21,838.56, 32,770.55 and 9,187.40 is: 13,786.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,838.56 : 32,770.55 = 9,187.40 : x
  2. Step 2: Convert to fraction form
    21,838.56/32,770.55 = 9,187.40/x
  3. Step 3: Cross multiply
    21,838.56x = 32,770.55 × 9,187.40
  4. Step 4: Simplify right side
    21,838.56x = 301,076,151.07
  5. Step 5: Solve for x
    x = 301,076,151.07/21,838.56
  6. Step 6: Final answer
    x = 13,786.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.