Home / 20,430.65-28,197.58-19,096.58

Finding the Fourth Proportional to 20,430.65, 28,197.58 and 19,096.58

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Solution

The fourth proportional to 20,430.65, 28,197.58 and 19,096.58 is: 26,356.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,430.65 : 28,197.58 = 19,096.58 : x
  2. Step 2: Convert to fraction form
    20,430.65/28,197.58 = 19,096.58/x
  3. Step 3: Cross multiply
    20,430.65x = 28,197.58 × 19,096.58
  4. Step 4: Simplify right side
    20,430.65x = 538,477,342.28
  5. Step 5: Solve for x
    x = 538,477,342.28/20,430.65
  6. Step 6: Final answer
    x = 26,356.35

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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.