Home / 16,521.90-24,784.47-5,428.14

Finding the Fourth Proportional to 16,521.90, 24,784.47 and 5,428.14

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Solution

The fourth proportional to 16,521.90, 24,784.47 and 5,428.14 is: 8,142.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,521.90 : 24,784.47 = 5,428.14 : x
  2. Step 2: Convert to fraction form
    16,521.90/24,784.47 = 5,428.14/x
  3. Step 3: Cross multiply
    16,521.90x = 24,784.47 × 5,428.14
  4. Step 4: Simplify right side
    16,521.90x = 134,533,572.99
  5. Step 5: Solve for x
    x = 134,533,572.99/16,521.90
  6. Step 6: Final answer
    x = 8,142.74

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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.