Home / 21,477.60-32,240.70-12,717.45

Finding the Fourth Proportional to 21,477.60, 32,240.70 and 12,717.45

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Solution

The fourth proportional to 21,477.60, 32,240.70 and 12,717.45 is: 19,090.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,477.60 : 32,240.70 = 12,717.45 : x
  2. Step 2: Convert to fraction form
    21,477.60/32,240.70 = 12,717.45/x
  3. Step 3: Cross multiply
    21,477.60x = 32,240.70 × 12,717.45
  4. Step 4: Simplify right side
    21,477.60x = 410,019,490.22
  5. Step 5: Solve for x
    x = 410,019,490.22/21,477.60
  6. Step 6: Final answer
    x = 19,090.56

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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.