Home / 30,128.34-41,582.93-17,389.78

Finding the Fourth Proportional to 30,128.34, 41,582.93 and 17,389.78

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Solution

The fourth proportional to 30,128.34, 41,582.93 and 17,389.78 is: 24,001.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,128.34 : 41,582.93 = 17,389.78 : x
  2. Step 2: Convert to fraction form
    30,128.34/41,582.93 = 17,389.78/x
  3. Step 3: Cross multiply
    30,128.34x = 41,582.93 × 17,389.78
  4. Step 4: Simplify right side
    30,128.34x = 723,118,004.46
  5. Step 5: Solve for x
    x = 723,118,004.46/30,128.34
  6. Step 6: Final answer
    x = 24,001.26

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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.