Home / 28,225.35-38,950.11-15,477.87

Finding the Fourth Proportional to 28,225.35, 38,950.11 and 15,477.87

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Solution

The fourth proportional to 28,225.35, 38,950.11 and 15,477.87 is: 21,358.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,225.35 : 38,950.11 = 15,477.87 : x
  2. Step 2: Convert to fraction form
    28,225.35/38,950.11 = 15,477.87/x
  3. Step 3: Cross multiply
    28,225.35x = 38,950.11 × 15,477.87
  4. Step 4: Simplify right side
    28,225.35x = 602,864,739.07
  5. Step 5: Solve for x
    x = 602,864,739.07/28,225.35
  6. Step 6: Final answer
    x = 21,358.98

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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.