Home / 21,603.74-32,332.44-13,289.02

Finding the Fourth Proportional to 21,603.74, 32,332.44 and 13,289.02

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Solution

The fourth proportional to 21,603.74, 32,332.44 and 13,289.02 is: 19,888.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,603.74 : 32,332.44 = 13,289.02 : x
  2. Step 2: Convert to fraction form
    21,603.74/32,332.44 = 13,289.02/x
  3. Step 3: Cross multiply
    21,603.74x = 32,332.44 × 13,289.02
  4. Step 4: Simplify right side
    21,603.74x = 429,666,441.81
  5. Step 5: Solve for x
    x = 429,666,441.81/21,603.74
  6. Step 6: Final answer
    x = 19,888.52

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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.