Home / 27,210.27-40,810.79-12,415.71

Finding the Fourth Proportional to 27,210.27, 40,810.79 and 12,415.71

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Solution

The fourth proportional to 27,210.27, 40,810.79 and 12,415.71 is: 18,621.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,210.27 : 40,810.79 = 12,415.71 : x
  2. Step 2: Convert to fraction form
    27,210.27/40,810.79 = 12,415.71/x
  3. Step 3: Cross multiply
    27,210.27x = 40,810.79 × 12,415.71
  4. Step 4: Simplify right side
    27,210.27x = 506,694,871.43
  5. Step 5: Solve for x
    x = 506,694,871.43/27,210.27
  6. Step 6: Final answer
    x = 18,621.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.