Home / 28,251.34-42,386.74-12,679.90

Finding the Fourth Proportional to 28,251.34, 42,386.74 and 12,679.90

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Solution

The fourth proportional to 28,251.34, 42,386.74 and 12,679.90 is: 19,024.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,251.34 : 42,386.74 = 12,679.90 : x
  2. Step 2: Convert to fraction form
    28,251.34/42,386.74 = 12,679.90/x
  3. Step 3: Cross multiply
    28,251.34x = 42,386.74 × 12,679.90
  4. Step 4: Simplify right side
    28,251.34x = 537,459,624.53
  5. Step 5: Solve for x
    x = 537,459,624.53/28,251.34
  6. Step 6: Final answer
    x = 19,024.22

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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.