Home / 25,861.80-35,688.33-15,807.09

Finding the Fourth Proportional to 25,861.80, 35,688.33 and 15,807.09

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Solution

The fourth proportional to 25,861.80, 35,688.33 and 15,807.09 is: 21,813.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,861.80 : 35,688.33 = 15,807.09 : x
  2. Step 2: Convert to fraction form
    25,861.80/35,688.33 = 15,807.09/x
  3. Step 3: Cross multiply
    25,861.80x = 35,688.33 × 15,807.09
  4. Step 4: Simplify right side
    25,861.80x = 564,128,644.26
  5. Step 5: Solve for x
    x = 564,128,644.26/25,861.80
  6. Step 6: Final answer
    x = 21,813.20

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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.