Home / 28,416.10-42,624.16-12,617.42

Finding the Fourth Proportional to 28,416.10, 42,624.16 and 12,617.42

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Solution

The fourth proportional to 28,416.10, 42,624.16 and 12,617.42 is: 18,926.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,416.10 : 42,624.16 = 12,617.42 : x
  2. Step 2: Convert to fraction form
    28,416.10/42,624.16 = 12,617.42/x
  3. Step 3: Cross multiply
    28,416.10x = 42,624.16 × 12,617.42
  4. Step 4: Simplify right side
    28,416.10x = 537,806,928.87
  5. Step 5: Solve for x
    x = 537,806,928.87/28,416.10
  6. Step 6: Final answer
    x = 18,926.13

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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.