Home / 19,042.22-28,547.84-12,783.15

Finding the Fourth Proportional to 19,042.22, 28,547.84 and 12,783.15

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Solution

The fourth proportional to 19,042.22, 28,547.84 and 12,783.15 is: 19,164.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,042.22 : 28,547.84 = 12,783.15 : x
  2. Step 2: Convert to fraction form
    19,042.22/28,547.84 = 12,783.15/x
  3. Step 3: Cross multiply
    19,042.22x = 28,547.84 × 12,783.15
  4. Step 4: Simplify right side
    19,042.22x = 364,931,114.24
  5. Step 5: Solve for x
    x = 364,931,114.24/19,042.22
  6. Step 6: Final answer
    x = 19,164.32

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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.