Home / 27,218.94-40,807.65-12,417.51

Finding the Fourth Proportional to 27,218.94, 40,807.65 and 12,417.51

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Solution

The fourth proportional to 27,218.94, 40,807.65 and 12,417.51 is: 18,616.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,218.94 : 40,807.65 = 12,417.51 : x
  2. Step 2: Convert to fraction form
    27,218.94/40,807.65 = 12,417.51/x
  3. Step 3: Cross multiply
    27,218.94x = 40,807.65 × 12,417.51
  4. Step 4: Simplify right side
    27,218.94x = 506,729,302.15
  5. Step 5: Solve for x
    x = 506,729,302.15/27,218.94
  6. Step 6: Final answer
    x = 18,616.79

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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.