Home / 21,688.40-32,538.72-6,106.16

Finding the Fourth Proportional to 21,688.40, 32,538.72 and 6,106.16

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Solution

The fourth proportional to 21,688.40, 32,538.72 and 6,106.16 is: 9,160.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,688.40 : 32,538.72 = 6,106.16 : x
  2. Step 2: Convert to fraction form
    21,688.40/32,538.72 = 6,106.16/x
  3. Step 3: Cross multiply
    21,688.40x = 32,538.72 × 6,106.16
  4. Step 4: Simplify right side
    21,688.40x = 198,686,630.52
  5. Step 5: Solve for x
    x = 198,686,630.52/21,688.40
  6. Step 6: Final answer
    x = 9,160.96

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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.