Home / 28,875.30-43,315.74-12,004.80

Finding the Fourth Proportional to 28,875.30, 43,315.74 and 12,004.80

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Solution

The fourth proportional to 28,875.30, 43,315.74 and 12,004.80 is: 18,008.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,875.30 : 43,315.74 = 12,004.80 : x
  2. Step 2: Convert to fraction form
    28,875.30/43,315.74 = 12,004.80/x
  3. Step 3: Cross multiply
    28,875.30x = 43,315.74 × 12,004.80
  4. Step 4: Simplify right side
    28,875.30x = 519,996,795.55
  5. Step 5: Solve for x
    x = 519,996,795.55/28,875.30
  6. Step 6: Final answer
    x = 18,008.36

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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.