Home / 20,735.04-28,632.24-17,780.16

Finding the Fourth Proportional to 20,735.04, 28,632.24 and 17,780.16

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Solution

The fourth proportional to 20,735.04, 28,632.24 and 17,780.16 is: 24,551.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,735.04 : 28,632.24 = 17,780.16 : x
  2. Step 2: Convert to fraction form
    20,735.04/28,632.24 = 17,780.16/x
  3. Step 3: Cross multiply
    20,735.04x = 28,632.24 × 17,780.16
  4. Step 4: Simplify right side
    20,735.04x = 509,085,808.36
  5. Step 5: Solve for x
    x = 509,085,808.36/20,735.04
  6. Step 6: Final answer
    x = 24,551.96

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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.