Home / 25,689.83-35,462.90-15,621.51

Finding the Fourth Proportional to 25,689.83, 35,462.90 and 15,621.51

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Solution

The fourth proportional to 25,689.83, 35,462.90 and 15,621.51 is: 21,564.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,689.83 : 35,462.90 = 15,621.51 : x
  2. Step 2: Convert to fraction form
    25,689.83/35,462.90 = 15,621.51/x
  3. Step 3: Cross multiply
    25,689.83x = 35,462.90 × 15,621.51
  4. Step 4: Simplify right side
    25,689.83x = 553,984,046.98
  5. Step 5: Solve for x
    x = 553,984,046.98/25,689.83
  6. Step 6: Final answer
    x = 21,564.33

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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.