Home / 25,365.83-35,005.17-15,809.58

Finding the Fourth Proportional to 25,365.83, 35,005.17 and 15,809.58

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Solution

The fourth proportional to 25,365.83, 35,005.17 and 15,809.58 is: 21,817.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,365.83 : 35,005.17 = 15,809.58 : x
  2. Step 2: Convert to fraction form
    25,365.83/35,005.17 = 15,809.58/x
  3. Step 3: Cross multiply
    25,365.83x = 35,005.17 × 15,809.58
  4. Step 4: Simplify right side
    25,365.83x = 553,417,035.53
  5. Step 5: Solve for x
    x = 553,417,035.53/25,365.83
  6. Step 6: Final answer
    x = 21,817.43

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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.