Home / 21,350.40-32,038.08-15,421.44

Finding the Fourth Proportional to 21,350.40, 32,038.08 and 15,421.44

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Solution

The fourth proportional to 21,350.40, 32,038.08 and 15,421.44 is: 23,141.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,350.40 : 32,038.08 = 15,421.44 : x
  2. Step 2: Convert to fraction form
    21,350.40/32,038.08 = 15,421.44/x
  3. Step 3: Cross multiply
    21,350.40x = 32,038.08 × 15,421.44
  4. Step 4: Simplify right side
    21,350.40x = 494,073,328.44
  5. Step 5: Solve for x
    x = 494,073,328.44/21,350.40
  6. Step 6: Final answer
    x = 23,141.17

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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.