Home / 28,416.11-42,569.63-15,898.21

Finding the Fourth Proportional to 28,416.11, 42,569.63 and 15,898.21

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Solution

The fourth proportional to 28,416.11, 42,569.63 and 15,898.21 is: 23,816.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,416.11 : 42,569.63 = 15,898.21 : x
  2. Step 2: Convert to fraction form
    28,416.11/42,569.63 = 15,898.21/x
  3. Step 3: Cross multiply
    28,416.11x = 42,569.63 × 15,898.21
  4. Step 4: Simplify right side
    28,416.11x = 676,780,917.36
  5. Step 5: Solve for x
    x = 676,780,917.36/28,416.11
  6. Step 6: Final answer
    x = 23,816.80

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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.