Home / 19,488.32-29,193.60-12,075.20

Finding the Fourth Proportional to 19,488.32, 29,193.60 and 12,075.20

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Solution

The fourth proportional to 19,488.32, 29,193.60 and 12,075.20 is: 18,088.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,488.32 : 29,193.60 = 12,075.20 : x
  2. Step 2: Convert to fraction form
    19,488.32/29,193.60 = 12,075.20/x
  3. Step 3: Cross multiply
    19,488.32x = 29,193.60 × 12,075.20
  4. Step 4: Simplify right side
    19,488.32x = 352,518,558.72
  5. Step 5: Solve for x
    x = 352,518,558.72/19,488.32
  6. Step 6: Final answer
    x = 18,088.71

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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.