Home / 15,522.56-21,417.96-14,989.16

Finding the Fourth Proportional to 15,522.56, 21,417.96 and 14,989.16

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Solution

The fourth proportional to 15,522.56, 21,417.96 and 14,989.16 is: 20,681.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,522.56 : 21,417.96 = 14,989.16 : x
  2. Step 2: Convert to fraction form
    15,522.56/21,417.96 = 14,989.16/x
  3. Step 3: Cross multiply
    15,522.56x = 21,417.96 × 14,989.16
  4. Step 4: Simplify right side
    15,522.56x = 321,037,229.31
  5. Step 5: Solve for x
    x = 321,037,229.31/15,522.56
  6. Step 6: Final answer
    x = 20,681.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.