Home / 21,623.61-32,448.23-9,142.95

Finding the Fourth Proportional to 21,623.61, 32,448.23 and 9,142.95

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Solution

The fourth proportional to 21,623.61, 32,448.23 and 9,142.95 is: 13,719.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,623.61 : 32,448.23 = 9,142.95 : x
  2. Step 2: Convert to fraction form
    21,623.61/32,448.23 = 9,142.95/x
  3. Step 3: Cross multiply
    21,623.61x = 32,448.23 × 9,142.95
  4. Step 4: Simplify right side
    21,623.61x = 296,672,498.76
  5. Step 5: Solve for x
    x = 296,672,498.76/21,623.61
  6. Step 6: Final answer
    x = 13,719.84

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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.