Home / 28,254.24-38,981.84-16,316

Finding the Fourth Proportional to 28,254.24, 38,981.84 and 16,316

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Solution

The fourth proportional to 28,254.24, 38,981.84 and 16,316 is: 22,510.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,254.24 : 38,981.84 = 16,316 : x
  2. Step 2: Convert to fraction form
    28,254.24/38,981.84 = 16,316/x
  3. Step 3: Cross multiply
    28,254.24x = 38,981.84 × 16,316
  4. Step 4: Simplify right side
    28,254.24x = 636,027,701.44
  5. Step 5: Solve for x
    x = 636,027,701.44/28,254.24
  6. Step 6: Final answer
    x = 22,510.88

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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.