Home / 20,074.19-27,715.10-12,907.44

Finding the Fourth Proportional to 20,074.19, 27,715.10 and 12,907.44

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Solution

The fourth proportional to 20,074.19, 27,715.10 and 12,907.44 is: 17,820.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,074.19 : 27,715.10 = 12,907.44 : x
  2. Step 2: Convert to fraction form
    20,074.19/27,715.10 = 12,907.44/x
  3. Step 3: Cross multiply
    20,074.19x = 27,715.10 × 12,907.44
  4. Step 4: Simplify right side
    20,074.19x = 357,730,925.81
  5. Step 5: Solve for x
    x = 357,730,925.81/20,074.19
  6. Step 6: Final answer
    x = 17,820.45

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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.