Home / 25,730.84-35,509.86-15,123.89

Finding the Fourth Proportional to 25,730.84, 35,509.86 and 15,123.89

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Solution

The fourth proportional to 25,730.84, 35,509.86 and 15,123.89 is: 20,871.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,730.84 : 35,509.86 = 15,123.89 : x
  2. Step 2: Convert to fraction form
    25,730.84/35,509.86 = 15,123.89/x
  3. Step 3: Cross multiply
    25,730.84x = 35,509.86 × 15,123.89
  4. Step 4: Simplify right side
    25,730.84x = 537,047,039.01
  5. Step 5: Solve for x
    x = 537,047,039.01/25,730.84
  6. Step 6: Final answer
    x = 20,871.73

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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.