Home / 32,877.30-45,359.58-18,720.12

Finding the Fourth Proportional to 32,877.30, 45,359.58 and 18,720.12

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Solution

The fourth proportional to 32,877.30, 45,359.58 and 18,720.12 is: 25,827.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,877.30 : 45,359.58 = 18,720.12 : x
  2. Step 2: Convert to fraction form
    32,877.30/45,359.58 = 18,720.12/x
  3. Step 3: Cross multiply
    32,877.30x = 45,359.58 × 18,720.12
  4. Step 4: Simplify right side
    32,877.30x = 849,136,780.75
  5. Step 5: Solve for x
    x = 849,136,780.75/32,877.30
  6. Step 6: Final answer
    x = 25,827.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.