Home / 21,622.16-32,410.80-11,740.40

Finding the Fourth Proportional to 21,622.16, 32,410.80 and 11,740.40

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Solution

The fourth proportional to 21,622.16, 32,410.80 and 11,740.40 is: 17,598.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,622.16 : 32,410.80 = 11,740.40 : x
  2. Step 2: Convert to fraction form
    21,622.16/32,410.80 = 11,740.40/x
  3. Step 3: Cross multiply
    21,622.16x = 32,410.80 × 11,740.40
  4. Step 4: Simplify right side
    21,622.16x = 380,515,756.32
  5. Step 5: Solve for x
    x = 380,515,756.32/21,622.16
  6. Step 6: Final answer
    x = 17,598.42

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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.