Home / 28,624.59-42,943.70-11,975.31

Finding the Fourth Proportional to 28,624.59, 42,943.70 and 11,975.31

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Solution

The fourth proportional to 28,624.59, 42,943.70 and 11,975.31 is: 17,965.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,624.59 : 42,943.70 = 11,975.31 : x
  2. Step 2: Convert to fraction form
    28,624.59/42,943.70 = 11,975.31/x
  3. Step 3: Cross multiply
    28,624.59x = 42,943.70 × 11,975.31
  4. Step 4: Simplify right side
    28,624.59x = 514,264,149.99
  5. Step 5: Solve for x
    x = 514,264,149.99/28,624.59
  6. Step 6: Final answer
    x = 17,965.82

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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.