Home / 21,783.96-32,688.36-18,130.44

Finding the Fourth Proportional to 21,783.96, 32,688.36 and 18,130.44

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Solution

The fourth proportional to 21,783.96, 32,688.36 and 18,130.44 is: 27,206.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,783.96 : 32,688.36 = 18,130.44 : x
  2. Step 2: Convert to fraction form
    21,783.96/32,688.36 = 18,130.44/x
  3. Step 3: Cross multiply
    21,783.96x = 32,688.36 × 18,130.44
  4. Step 4: Simplify right side
    21,783.96x = 592,654,349.68
  5. Step 5: Solve for x
    x = 592,654,349.68/21,783.96
  6. Step 6: Final answer
    x = 27,206.00

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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.