Home / 28,102.30-42,153.45-14,980.30

Finding the Fourth Proportional to 28,102.30, 42,153.45 and 14,980.30

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Solution

The fourth proportional to 28,102.30, 42,153.45 and 14,980.30 is: 22,470.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,102.30 : 42,153.45 = 14,980.30 : x
  2. Step 2: Convert to fraction form
    28,102.30/42,153.45 = 14,980.30/x
  3. Step 3: Cross multiply
    28,102.30x = 42,153.45 × 14,980.30
  4. Step 4: Simplify right side
    28,102.30x = 631,471,327.04
  5. Step 5: Solve for x
    x = 631,471,327.04/28,102.30
  6. Step 6: Final answer
    x = 22,470.45

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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.