Home / 25,857.46-35,682.36-15,802.72

Finding the Fourth Proportional to 25,857.46, 35,682.36 and 15,802.72

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Solution

The fourth proportional to 25,857.46, 35,682.36 and 15,802.72 is: 21,807.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,857.46 : 35,682.36 = 15,802.72 : x
  2. Step 2: Convert to fraction form
    25,857.46/35,682.36 = 15,802.72/x
  3. Step 3: Cross multiply
    25,857.46x = 35,682.36 × 15,802.72
  4. Step 4: Simplify right side
    25,857.46x = 563,878,344.02
  5. Step 5: Solve for x
    x = 563,878,344.02/25,857.46
  6. Step 6: Final answer
    x = 21,807.18

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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.