Home / 42,667.12-64,001.61-13,084.30

Finding the Fourth Proportional to 42,667.12, 64,001.61 and 13,084.30

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Solution

The fourth proportional to 42,667.12, 64,001.61 and 13,084.30 is: 19,626.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,667.12 : 64,001.61 = 13,084.30 : x
  2. Step 2: Convert to fraction form
    42,667.12/64,001.61 = 13,084.30/x
  3. Step 3: Cross multiply
    42,667.12x = 64,001.61 × 13,084.30
  4. Step 4: Simplify right side
    42,667.12x = 837,416,265.72
  5. Step 5: Solve for x
    x = 837,416,265.72/42,667.12
  6. Step 6: Final answer
    x = 19,626.74

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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.