Home / 28,323.19-39,087-15,576.90

Finding the Fourth Proportional to 28,323.19, 39,087 and 15,576.90

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Solution

The fourth proportional to 28,323.19, 39,087 and 15,576.90 is: 21,496.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,323.19 : 39,087 = 15,576.90 : x
  2. Step 2: Convert to fraction form
    28,323.19/39,087 = 15,576.90/x
  3. Step 3: Cross multiply
    28,323.19x = 39,087 × 15,576.90
  4. Step 4: Simplify right side
    28,323.19x = 608,854,290.30
  5. Step 5: Solve for x
    x = 608,854,290.30/28,323.19
  6. Step 6: Final answer
    x = 21,496.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.