Home / 21,559.30-32,343.27-9,875.86

Finding the Fourth Proportional to 21,559.30, 32,343.27 and 9,875.86

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Solution

The fourth proportional to 21,559.30, 32,343.27 and 9,875.86 is: 14,815.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,559.30 : 32,343.27 = 9,875.86 : x
  2. Step 2: Convert to fraction form
    21,559.30/32,343.27 = 9,875.86/x
  3. Step 3: Cross multiply
    21,559.30x = 32,343.27 × 9,875.86
  4. Step 4: Simplify right side
    21,559.30x = 319,417,606.46
  5. Step 5: Solve for x
    x = 319,417,606.46/21,559.30
  6. Step 6: Final answer
    x = 14,815.77

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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.