Home / 28,264.84-42,404.64-8,543.92

Finding the Fourth Proportional to 28,264.84, 42,404.64 and 8,543.92

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Solution

The fourth proportional to 28,264.84, 42,404.64 and 8,543.92 is: 12,818.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,264.84 : 42,404.64 = 8,543.92 : x
  2. Step 2: Convert to fraction form
    28,264.84/42,404.64 = 8,543.92/x
  3. Step 3: Cross multiply
    28,264.84x = 42,404.64 × 8,543.92
  4. Step 4: Simplify right side
    28,264.84x = 362,301,851.79
  5. Step 5: Solve for x
    x = 362,301,851.79/28,264.84
  6. Step 6: Final answer
    x = 12,818.11

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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.