Home / 25,554.29-38,280.40-20,298.20

Finding the Fourth Proportional to 25,554.29, 38,280.40 and 20,298.20

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Solution

The fourth proportional to 25,554.29, 38,280.40 and 20,298.20 is: 30,406.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,554.29 : 38,280.40 = 20,298.20 : x
  2. Step 2: Convert to fraction form
    25,554.29/38,280.40 = 20,298.20/x
  3. Step 3: Cross multiply
    25,554.29x = 38,280.40 × 20,298.20
  4. Step 4: Simplify right side
    25,554.29x = 777,022,973.13
  5. Step 5: Solve for x
    x = 777,022,973.13/25,554.29
  6. Step 6: Final answer
    x = 30,406.76

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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.