Home / 19,031.96-28,547.94-7,943.87

Finding the Fourth Proportional to 19,031.96, 28,547.94 and 7,943.87

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Solution

The fourth proportional to 19,031.96, 28,547.94 and 7,943.87 is: 11,915.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,031.96 : 28,547.94 = 7,943.87 : x
  2. Step 2: Convert to fraction form
    19,031.96/28,547.94 = 7,943.87/x
  3. Step 3: Cross multiply
    19,031.96x = 28,547.94 × 7,943.87
  4. Step 4: Simplify right side
    19,031.96x = 226,780,981.39
  5. Step 5: Solve for x
    x = 226,780,981.39/19,031.96
  6. Step 6: Final answer
    x = 11,915.80

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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.