Home / 22,518.79-31,075.51-12,447.65

Finding the Fourth Proportional to 22,518.79, 31,075.51 and 12,447.65

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Solution

The fourth proportional to 22,518.79, 31,075.51 and 12,447.65 is: 17,177.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,518.79 : 31,075.51 = 12,447.65 : x
  2. Step 2: Convert to fraction form
    22,518.79/31,075.51 = 12,447.65/x
  3. Step 3: Cross multiply
    22,518.79x = 31,075.51 × 12,447.65
  4. Step 4: Simplify right side
    22,518.79x = 386,817,072.05
  5. Step 5: Solve for x
    x = 386,817,072.05/22,518.79
  6. Step 6: Final answer
    x = 17,177.52

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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.