Home / 25,457.64-35,132.40-15,384.12

Finding the Fourth Proportional to 25,457.64, 35,132.40 and 15,384.12

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Solution

The fourth proportional to 25,457.64, 35,132.40 and 15,384.12 is: 21,230.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,457.64 : 35,132.40 = 15,384.12 : x
  2. Step 2: Convert to fraction form
    25,457.64/35,132.40 = 15,384.12/x
  3. Step 3: Cross multiply
    25,457.64x = 35,132.40 × 15,384.12
  4. Step 4: Simplify right side
    25,457.64x = 540,481,057.49
  5. Step 5: Solve for x
    x = 540,481,057.49/25,457.64
  6. Step 6: Final answer
    x = 21,230.60

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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.