Home / 28,875.20-43,312.80-27,125.60

Finding the Fourth Proportional to 28,875.20, 43,312.80 and 27,125.60

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Solution

The fourth proportional to 28,875.20, 43,312.80 and 27,125.60 is: 40,688.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,875.20 : 43,312.80 = 27,125.60 : x
  2. Step 2: Convert to fraction form
    28,875.20/43,312.80 = 27,125.60/x
  3. Step 3: Cross multiply
    28,875.20x = 43,312.80 × 27,125.60
  4. Step 4: Simplify right side
    28,875.20x = 1,174,885,687.68
  5. Step 5: Solve for x
    x = 1,174,885,687.68/28,875.20
  6. Step 6: Final answer
    x = 40,688.40

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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.