Home / 28,459.10-39,274.50-16,521.72

Finding the Fourth Proportional to 28,459.10, 39,274.50 and 16,521.72

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Solution

The fourth proportional to 28,459.10, 39,274.50 and 16,521.72 is: 22,800.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,459.10 : 39,274.50 = 16,521.72 : x
  2. Step 2: Convert to fraction form
    28,459.10/39,274.50 = 16,521.72/x
  3. Step 3: Cross multiply
    28,459.10x = 39,274.50 × 16,521.72
  4. Step 4: Simplify right side
    28,459.10x = 648,882,292.14
  5. Step 5: Solve for x
    x = 648,882,292.14/28,459.10
  6. Step 6: Final answer
    x = 22,800.52

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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.