Home / 25,288.28-34,886.94-15,855.04

Finding the Fourth Proportional to 25,288.28, 34,886.94 and 15,855.04

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Solution

The fourth proportional to 25,288.28, 34,886.94 and 15,855.04 is: 21,873.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,288.28 : 34,886.94 = 15,855.04 : x
  2. Step 2: Convert to fraction form
    25,288.28/34,886.94 = 15,855.04/x
  3. Step 3: Cross multiply
    25,288.28x = 34,886.94 × 15,855.04
  4. Step 4: Simplify right side
    25,288.28x = 553,133,829.18
  5. Step 5: Solve for x
    x = 553,133,829.18/25,288.28
  6. Step 6: Final answer
    x = 21,873.13

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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.