Home / 21,810.77-32,688.36-9,327.56

Finding the Fourth Proportional to 21,810.77, 32,688.36 and 9,327.56

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Solution

The fourth proportional to 21,810.77, 32,688.36 and 9,327.56 is: 13,979.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,810.77 : 32,688.36 = 9,327.56 : x
  2. Step 2: Convert to fraction form
    21,810.77/32,688.36 = 9,327.56/x
  3. Step 3: Cross multiply
    21,810.77x = 32,688.36 × 9,327.56
  4. Step 4: Simplify right side
    21,810.77x = 304,902,475.76
  5. Step 5: Solve for x
    x = 304,902,475.76/21,810.77
  6. Step 6: Final answer
    x = 13,979.45

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1.5x scale

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.