Home / 21,328.84-32,000.46-13,437.28

Finding the Fourth Proportional to 21,328.84, 32,000.46 and 13,437.28

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Solution

The fourth proportional to 21,328.84, 32,000.46 and 13,437.28 is: 20,160.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,328.84 : 32,000.46 = 13,437.28 : x
  2. Step 2: Convert to fraction form
    21,328.84/32,000.46 = 13,437.28/x
  3. Step 3: Cross multiply
    21,328.84x = 32,000.46 × 13,437.28
  4. Step 4: Simplify right side
    21,328.84x = 429,999,141.15
  5. Step 5: Solve for x
    x = 429,999,141.15/21,328.84
  6. Step 6: Final answer
    x = 20,160.46

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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.