Home / 21,407.80-32,110.10-8,924.60

Finding the Fourth Proportional to 21,407.80, 32,110.10 and 8,924.60

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Solution

The fourth proportional to 21,407.80, 32,110.10 and 8,924.60 is: 13,386.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,407.80 : 32,110.10 = 8,924.60 : x
  2. Step 2: Convert to fraction form
    21,407.80/32,110.10 = 8,924.60/x
  3. Step 3: Cross multiply
    21,407.80x = 32,110.10 × 8,924.60
  4. Step 4: Simplify right side
    21,407.80x = 286,569,798.46
  5. Step 5: Solve for x
    x = 286,569,798.46/21,407.80
  6. Step 6: Final answer
    x = 13,386.23

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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.