Home / 28,466.10-42,711.30-13,667.40

Finding the Fourth Proportional to 28,466.10, 42,711.30 and 13,667.40

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Solution

The fourth proportional to 28,466.10, 42,711.30 and 13,667.40 is: 20,506.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,466.10 : 42,711.30 = 13,667.40 : x
  2. Step 2: Convert to fraction form
    28,466.10/42,711.30 = 13,667.40/x
  3. Step 3: Cross multiply
    28,466.10x = 42,711.30 × 13,667.40
  4. Step 4: Simplify right side
    28,466.10x = 583,752,421.62
  5. Step 5: Solve for x
    x = 583,752,421.62/28,466.10
  6. Step 6: Final answer
    x = 20,506.93

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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.