Home / 21,325.44-29,420.51-14,158.83

Finding the Fourth Proportional to 21,325.44, 29,420.51 and 14,158.83

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Solution

The fourth proportional to 21,325.44, 29,420.51 and 14,158.83 is: 19,533.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,325.44 : 29,420.51 = 14,158.83 : x
  2. Step 2: Convert to fraction form
    21,325.44/29,420.51 = 14,158.83/x
  3. Step 3: Cross multiply
    21,325.44x = 29,420.51 × 14,158.83
  4. Step 4: Simplify right side
    21,325.44x = 416,559,928.81
  5. Step 5: Solve for x
    x = 416,559,928.81/21,325.44
  6. Step 6: Final answer
    x = 19,533.47

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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.