Home / 25,803.47-35,567.64-19,420.47

Finding the Fourth Proportional to 25,803.47, 35,567.64 and 19,420.47

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Solution

The fourth proportional to 25,803.47, 35,567.64 and 19,420.47 is: 26,769.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,803.47 : 35,567.64 = 19,420.47 : x
  2. Step 2: Convert to fraction form
    25,803.47/35,567.64 = 19,420.47/x
  3. Step 3: Cross multiply
    25,803.47x = 35,567.64 × 19,420.47
  4. Step 4: Simplify right side
    25,803.47x = 690,740,285.59
  5. Step 5: Solve for x
    x = 690,740,285.59/25,803.47
  6. Step 6: Final answer
    x = 26,769.28

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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.