Home / 17,378.43-23,981.85-9,420.45

Finding the Fourth Proportional to 17,378.43, 23,981.85 and 9,420.45

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Solution

The fourth proportional to 17,378.43, 23,981.85 and 9,420.45 is: 13,000.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,378.43 : 23,981.85 = 9,420.45 : x
  2. Step 2: Convert to fraction form
    17,378.43/23,981.85 = 9,420.45/x
  3. Step 3: Cross multiply
    17,378.43x = 23,981.85 × 9,420.45
  4. Step 4: Simplify right side
    17,378.43x = 225,919,818.83
  5. Step 5: Solve for x
    x = 225,919,818.83/17,378.43
  6. Step 6: Final answer
    x = 13,000.01

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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.