Home / 28,967.68-39,972.90-16,866.28

Finding the Fourth Proportional to 28,967.68, 39,972.90 and 16,866.28

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Solution

The fourth proportional to 28,967.68, 39,972.90 and 16,866.28 is: 23,274.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,967.68 : 39,972.90 = 16,866.28 : x
  2. Step 2: Convert to fraction form
    28,967.68/39,972.90 = 16,866.28/x
  3. Step 3: Cross multiply
    28,967.68x = 39,972.90 × 16,866.28
  4. Step 4: Simplify right side
    28,967.68x = 674,194,123.81
  5. Step 5: Solve for x
    x = 674,194,123.81/28,967.68
  6. Step 6: Final answer
    x = 23,274.01

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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.