Home / 28,424.40-42,648.88-15,261.36

Finding the Fourth Proportional to 28,424.40, 42,648.88 and 15,261.36

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Solution

The fourth proportional to 28,424.40, 42,648.88 and 15,261.36 is: 22,898.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,424.40 : 42,648.88 = 15,261.36 : x
  2. Step 2: Convert to fraction form
    28,424.40/42,648.88 = 15,261.36/x
  3. Step 3: Cross multiply
    28,424.40x = 42,648.88 × 15,261.36
  4. Step 4: Simplify right side
    28,424.40x = 650,879,911.28
  5. Step 5: Solve for x
    x = 650,879,911.28/28,424.40
  6. Step 6: Final answer
    x = 22,898.63

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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.