Home / 25,050.81-34,569.99-13,720.28

Finding the Fourth Proportional to 25,050.81, 34,569.99 and 13,720.28

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Solution

The fourth proportional to 25,050.81, 34,569.99 and 13,720.28 is: 18,933.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,050.81 : 34,569.99 = 13,720.28 : x
  2. Step 2: Convert to fraction form
    25,050.81/34,569.99 = 13,720.28/x
  3. Step 3: Cross multiply
    25,050.81x = 34,569.99 × 13,720.28
  4. Step 4: Simplify right side
    25,050.81x = 474,309,769.55
  5. Step 5: Solve for x
    x = 474,309,769.55/25,050.81
  6. Step 6: Final answer
    x = 18,933.91

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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.