Home / 25,430.36-38,153.02-11,387.28

Finding the Fourth Proportional to 25,430.36, 38,153.02 and 11,387.28

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Solution

The fourth proportional to 25,430.36, 38,153.02 and 11,387.28 is: 17,084.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,430.36 : 38,153.02 = 11,387.28 : x
  2. Step 2: Convert to fraction form
    25,430.36/38,153.02 = 11,387.28/x
  3. Step 3: Cross multiply
    25,430.36x = 38,153.02 × 11,387.28
  4. Step 4: Simplify right side
    25,430.36x = 434,459,121.59
  5. Step 5: Solve for x
    x = 434,459,121.59/25,430.36
  6. Step 6: Final answer
    x = 17,084.27

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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.