Home / 28,624.16-39,515.10-18,019.64

Finding the Fourth Proportional to 28,624.16, 39,515.10 and 18,019.64

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Solution

The fourth proportional to 28,624.16, 39,515.10 and 18,019.64 is: 24,875.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,624.16 : 39,515.10 = 18,019.64 : x
  2. Step 2: Convert to fraction form
    28,624.16/39,515.10 = 18,019.64/x
  3. Step 3: Cross multiply
    28,624.16x = 39,515.10 × 18,019.64
  4. Step 4: Simplify right side
    28,624.16x = 712,047,876.56
  5. Step 5: Solve for x
    x = 712,047,876.56/28,624.16
  6. Step 6: Final answer
    x = 24,875.76

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1.5x scale

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.