Home / 21,742.40-32,602.56-9,257.60

Finding the Fourth Proportional to 21,742.40, 32,602.56 and 9,257.60

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Solution

The fourth proportional to 21,742.40, 32,602.56 and 9,257.60 is: 13,881.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,742.40 : 32,602.56 = 9,257.60 : x
  2. Step 2: Convert to fraction form
    21,742.40/32,602.56 = 9,257.60/x
  3. Step 3: Cross multiply
    21,742.40x = 32,602.56 × 9,257.60
  4. Step 4: Simplify right side
    21,742.40x = 301,821,459.46
  5. Step 5: Solve for x
    x = 301,821,459.46/21,742.40
  6. Step 6: Final answer
    x = 13,881.70

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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.