Home / 21,368.68-32,009.26-12,577.48

Finding the Fourth Proportional to 21,368.68, 32,009.26 and 12,577.48

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Solution

The fourth proportional to 21,368.68, 32,009.26 and 12,577.48 is: 18,840.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,368.68 : 32,009.26 = 12,577.48 : x
  2. Step 2: Convert to fraction form
    21,368.68/32,009.26 = 12,577.48/x
  3. Step 3: Cross multiply
    21,368.68x = 32,009.26 × 12,577.48
  4. Step 4: Simplify right side
    21,368.68x = 402,595,827.46
  5. Step 5: Solve for x
    x = 402,595,827.46/21,368.68
  6. Step 6: Final answer
    x = 18,840.46

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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.