Home / 23,428.40-32,330.54-12,817.80

Finding the Fourth Proportional to 23,428.40, 32,330.54 and 12,817.80

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Solution

The fourth proportional to 23,428.40, 32,330.54 and 12,817.80 is: 17,688.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,428.40 : 32,330.54 = 12,817.80 : x
  2. Step 2: Convert to fraction form
    23,428.40/32,330.54 = 12,817.80/x
  3. Step 3: Cross multiply
    23,428.40x = 32,330.54 × 12,817.80
  4. Step 4: Simplify right side
    23,428.40x = 414,406,427.66
  5. Step 5: Solve for x
    x = 414,406,427.66/23,428.40
  6. Step 6: Final answer
    x = 17,688.21

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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.