Home / 15,521.40-23,285.72-4,428.24

Finding the Fourth Proportional to 15,521.40, 23,285.72 and 4,428.24

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Solution

The fourth proportional to 15,521.40, 23,285.72 and 4,428.24 is: 6,643.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,521.40 : 23,285.72 = 4,428.24 : x
  2. Step 2: Convert to fraction form
    15,521.40/23,285.72 = 4,428.24/x
  3. Step 3: Cross multiply
    15,521.40x = 23,285.72 × 4,428.24
  4. Step 4: Simplify right side
    15,521.40x = 103,114,734.59
  5. Step 5: Solve for x
    x = 103,114,734.59/15,521.40
  6. Step 6: Final answer
    x = 6,643.39

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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.