Home / 30,415.59-45,624.91-11,689.07

Finding the Fourth Proportional to 30,415.59, 45,624.91 and 11,689.07

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Solution

The fourth proportional to 30,415.59, 45,624.91 and 11,689.07 is: 17,534.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,415.59 : 45,624.91 = 11,689.07 : x
  2. Step 2: Convert to fraction form
    30,415.59/45,624.91 = 11,689.07/x
  3. Step 3: Cross multiply
    30,415.59x = 45,624.91 × 11,689.07
  4. Step 4: Simplify right side
    30,415.59x = 533,312,766.73
  5. Step 5: Solve for x
    x = 533,312,766.73/30,415.59
  6. Step 6: Final answer
    x = 17,534.19

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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.