Home / 30,430.53-41,989.95-17,000.11

Finding the Fourth Proportional to 30,430.53, 41,989.95 and 17,000.11

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Solution

The fourth proportional to 30,430.53, 41,989.95 and 17,000.11 is: 23,457.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,430.53 : 41,989.95 = 17,000.11 : x
  2. Step 2: Convert to fraction form
    30,430.53/41,989.95 = 17,000.11/x
  3. Step 3: Cross multiply
    30,430.53x = 41,989.95 × 17,000.11
  4. Step 4: Simplify right side
    30,430.53x = 713,833,768.89
  5. Step 5: Solve for x
    x = 713,833,768.89/30,430.53
  6. Step 6: Final answer
    x = 23,457.82

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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.