Home / 28,467.61-42,705.98-14,421.95

Finding the Fourth Proportional to 28,467.61, 42,705.98 and 14,421.95

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Solution

The fourth proportional to 28,467.61, 42,705.98 and 14,421.95 is: 21,635.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,467.61 : 42,705.98 = 14,421.95 : x
  2. Step 2: Convert to fraction form
    28,467.61/42,705.98 = 14,421.95/x
  3. Step 3: Cross multiply
    28,467.61x = 42,705.98 × 14,421.95
  4. Step 4: Simplify right side
    28,467.61x = 615,903,396.29
  5. Step 5: Solve for x
    x = 615,903,396.29/28,467.61
  6. Step 6: Final answer
    x = 21,635.23

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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.