Home / 25,420.50-38,130.21-11,377.26

Finding the Fourth Proportional to 25,420.50, 38,130.21 and 11,377.26

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Solution

The fourth proportional to 25,420.50, 38,130.21 and 11,377.26 is: 17,065.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,420.50 : 38,130.21 = 11,377.26 : x
  2. Step 2: Convert to fraction form
    25,420.50/38,130.21 = 11,377.26/x
  3. Step 3: Cross multiply
    25,420.50x = 38,130.21 × 11,377.26
  4. Step 4: Simplify right side
    25,420.50x = 433,817,313.02
  5. Step 5: Solve for x
    x = 433,817,313.02/25,420.50
  6. Step 6: Final answer
    x = 17,065.65

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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.