Home / 21,560.40-32,302.20-17,643.60

Finding the Fourth Proportional to 21,560.40, 32,302.20 and 17,643.60

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Solution

The fourth proportional to 21,560.40, 32,302.20 and 17,643.60 is: 26,433.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,560.40 : 32,302.20 = 17,643.60 : x
  2. Step 2: Convert to fraction form
    21,560.40/32,302.20 = 17,643.60/x
  3. Step 3: Cross multiply
    21,560.40x = 32,302.20 × 17,643.60
  4. Step 4: Simplify right side
    21,560.40x = 569,927,095.92
  5. Step 5: Solve for x
    x = 569,927,095.92/21,560.40
  6. Step 6: Final answer
    x = 26,433.98

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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.