Home / 28,146.50-42,219.72-13,347.35

Finding the Fourth Proportional to 28,146.50, 42,219.72 and 13,347.35

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Solution

The fourth proportional to 28,146.50, 42,219.72 and 13,347.35 is: 20,021.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,146.50 : 42,219.72 = 13,347.35 : x
  2. Step 2: Convert to fraction form
    28,146.50/42,219.72 = 13,347.35/x
  3. Step 3: Cross multiply
    28,146.50x = 42,219.72 × 13,347.35
  4. Step 4: Simplify right side
    28,146.50x = 563,521,135.28
  5. Step 5: Solve for x
    x = 563,521,135.28/28,146.50
  6. Step 6: Final answer
    x = 20,021.00

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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.