Home / 28,135.51-42,190.95-13,348.64

Finding the Fourth Proportional to 28,135.51, 42,190.95 and 13,348.64

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Solution

The fourth proportional to 28,135.51, 42,190.95 and 13,348.64 is: 20,017.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,135.51 : 42,190.95 = 13,348.64 : x
  2. Step 2: Convert to fraction form
    28,135.51/42,190.95 = 13,348.64/x
  3. Step 3: Cross multiply
    28,135.51x = 42,190.95 × 13,348.64
  4. Step 4: Simplify right side
    28,135.51x = 563,191,958.34
  5. Step 5: Solve for x
    x = 563,191,958.34/28,135.51
  6. Step 6: Final answer
    x = 20,017.12

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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.