Home / 28,124.40-42,235.20-15,002.40

Finding the Fourth Proportional to 28,124.40, 42,235.20 and 15,002.40

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Solution

The fourth proportional to 28,124.40, 42,235.20 and 15,002.40 is: 22,529.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,124.40 : 42,235.20 = 15,002.40 : x
  2. Step 2: Convert to fraction form
    28,124.40/42,235.20 = 15,002.40/x
  3. Step 3: Cross multiply
    28,124.40x = 42,235.20 × 15,002.40
  4. Step 4: Simplify right side
    28,124.40x = 633,629,364.48
  5. Step 5: Solve for x
    x = 633,629,364.48/28,124.40
  6. Step 6: Final answer
    x = 22,529.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.