Home / 21,430.11-32,152.86-9,582.87

Finding the Fourth Proportional to 21,430.11, 32,152.86 and 9,582.87

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Solution

The fourth proportional to 21,430.11, 32,152.86 and 9,582.87 is: 14,377.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,430.11 : 32,152.86 = 9,582.87 : x
  2. Step 2: Convert to fraction form
    21,430.11/32,152.86 = 9,582.87/x
  3. Step 3: Cross multiply
    21,430.11x = 32,152.86 × 9,582.87
  4. Step 4: Simplify right side
    21,430.11x = 308,116,677.51
  5. Step 5: Solve for x
    x = 308,116,677.51/21,430.11
  6. Step 6: Final answer
    x = 14,377.75

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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.