Home / 45,211.23-67,809.02-11,931.57

Finding the Fourth Proportional to 45,211.23, 67,809.02 and 11,931.57

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Solution

The fourth proportional to 45,211.23, 67,809.02 and 11,931.57 is: 17,895.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,211.23 : 67,809.02 = 11,931.57 : x
  2. Step 2: Convert to fraction form
    45,211.23/67,809.02 = 11,931.57/x
  3. Step 3: Cross multiply
    45,211.23x = 67,809.02 × 11,931.57
  4. Step 4: Simplify right side
    45,211.23x = 809,068,009.10
  5. Step 5: Solve for x
    x = 809,068,009.10/45,211.23
  6. Step 6: Final answer
    x = 17,895.29

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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.