Home / 21,570.36-32,332.50-15,395.64

Finding the Fourth Proportional to 21,570.36, 32,332.50 and 15,395.64

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Solution

The fourth proportional to 21,570.36, 32,332.50 and 15,395.64 is: 23,077.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,570.36 : 32,332.50 = 15,395.64 : x
  2. Step 2: Convert to fraction form
    21,570.36/32,332.50 = 15,395.64/x
  3. Step 3: Cross multiply
    21,570.36x = 32,332.50 × 15,395.64
  4. Step 4: Simplify right side
    21,570.36x = 497,779,530.30
  5. Step 5: Solve for x
    x = 497,779,530.30/21,570.36
  6. Step 6: Final answer
    x = 23,077.02

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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.