Home / 21,445.32-32,171.08-6,655.40

Finding the Fourth Proportional to 21,445.32, 32,171.08 and 6,655.40

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Solution

The fourth proportional to 21,445.32, 32,171.08 and 6,655.40 is: 9,984.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,445.32 : 32,171.08 = 6,655.40 : x
  2. Step 2: Convert to fraction form
    21,445.32/32,171.08 = 6,655.40/x
  3. Step 3: Cross multiply
    21,445.32x = 32,171.08 × 6,655.40
  4. Step 4: Simplify right side
    21,445.32x = 214,111,405.83
  5. Step 5: Solve for x
    x = 214,111,405.83/21,445.32
  6. Step 6: Final answer
    x = 9,984.06

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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.