Home / 15,521.36-23,285.70-4,428.18

Finding the Fourth Proportional to 15,521.36, 23,285.70 and 4,428.18

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Solution

The fourth proportional to 15,521.36, 23,285.70 and 4,428.18 is: 6,643.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,521.36 : 23,285.70 = 4,428.18 : x
  2. Step 2: Convert to fraction form
    15,521.36/23,285.70 = 4,428.18/x
  3. Step 3: Cross multiply
    15,521.36x = 23,285.70 × 4,428.18
  4. Step 4: Simplify right side
    15,521.36x = 103,113,271.03
  5. Step 5: Solve for x
    x = 103,113,271.03/15,521.36
  6. Step 6: Final answer
    x = 6,643.32

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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.