Home / 25,103.14-34,639.40-15,030.18

Finding the Fourth Proportional to 25,103.14, 34,639.40 and 15,030.18

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Solution

The fourth proportional to 25,103.14, 34,639.40 and 15,030.18 is: 20,739.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,103.14 : 34,639.40 = 15,030.18 : x
  2. Step 2: Convert to fraction form
    25,103.14/34,639.40 = 15,030.18/x
  3. Step 3: Cross multiply
    25,103.14x = 34,639.40 × 15,030.18
  4. Step 4: Simplify right side
    25,103.14x = 520,636,454.67
  5. Step 5: Solve for x
    x = 520,636,454.67/25,103.14
  6. Step 6: Final answer
    x = 20,739.90

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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.