Home / 25,688.83-35,461.52-15,620.51

Finding the Fourth Proportional to 25,688.83, 35,461.52 and 15,620.51

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Solution

The fourth proportional to 25,688.83, 35,461.52 and 15,620.51 is: 21,562.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,688.83 : 35,461.52 = 15,620.51 : x
  2. Step 2: Convert to fraction form
    25,688.83/35,461.52 = 15,620.51/x
  3. Step 3: Cross multiply
    25,688.83x = 35,461.52 × 15,620.51
  4. Step 4: Simplify right side
    25,688.83x = 553,926,991.23
  5. Step 5: Solve for x
    x = 553,926,991.23/25,688.83
  6. Step 6: Final answer
    x = 21,562.95

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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.