Home / 34,242.94-47,260.68-20,818.40

Finding the Fourth Proportional to 34,242.94, 47,260.68 and 20,818.40

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Solution

The fourth proportional to 34,242.94, 47,260.68 and 20,818.40 is: 28,732.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,242.94 : 47,260.68 = 20,818.40 : x
  2. Step 2: Convert to fraction form
    34,242.94/47,260.68 = 20,818.40/x
  3. Step 3: Cross multiply
    34,242.94x = 47,260.68 × 20,818.40
  4. Step 4: Simplify right side
    34,242.94x = 983,891,740.51
  5. Step 5: Solve for x
    x = 983,891,740.51/34,242.94
  6. Step 6: Final answer
    x = 28,732.69

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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.