Home / 21,356.46-32,045.76-15,156.36

Finding the Fourth Proportional to 21,356.46, 32,045.76 and 15,156.36

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Solution

The fourth proportional to 21,356.46, 32,045.76 and 15,156.36 is: 22,742.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,356.46 : 32,045.76 = 15,156.36 : x
  2. Step 2: Convert to fraction form
    21,356.46/32,045.76 = 15,156.36/x
  3. Step 3: Cross multiply
    21,356.46x = 32,045.76 × 15,156.36
  4. Step 4: Simplify right side
    21,356.46x = 485,697,075.03
  5. Step 5: Solve for x
    x = 485,697,075.03/21,356.46
  6. Step 6: Final answer
    x = 22,742.40

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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.