Home / 28,025.60-42,005.10-14,871.20

Finding the Fourth Proportional to 28,025.60, 42,005.10 and 14,871.20

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Solution

The fourth proportional to 28,025.60, 42,005.10 and 14,871.20 is: 22,289.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,025.60 : 42,005.10 = 14,871.20 : x
  2. Step 2: Convert to fraction form
    28,025.60/42,005.10 = 14,871.20/x
  3. Step 3: Cross multiply
    28,025.60x = 42,005.10 × 14,871.20
  4. Step 4: Simplify right side
    28,025.60x = 624,666,243.12
  5. Step 5: Solve for x
    x = 624,666,243.12/28,025.60
  6. Step 6: Final answer
    x = 22,289.13

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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.