Home / 21,077.11-31,585.59-14,450.50

Finding the Fourth Proportional to 21,077.11, 31,585.59 and 14,450.50

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Solution

The fourth proportional to 21,077.11, 31,585.59 and 14,450.50 is: 21,655.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,077.11 : 31,585.59 = 14,450.50 : x
  2. Step 2: Convert to fraction form
    21,077.11/31,585.59 = 14,450.50/x
  3. Step 3: Cross multiply
    21,077.11x = 31,585.59 × 14,450.50
  4. Step 4: Simplify right side
    21,077.11x = 456,427,568.30
  5. Step 5: Solve for x
    x = 456,427,568.30/21,077.11
  6. Step 6: Final answer
    x = 21,655.13

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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.