Home / 34,549.59-47,690.74-20,402.49

Finding the Fourth Proportional to 34,549.59, 47,690.74 and 20,402.49

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Solution

The fourth proportional to 34,549.59, 47,690.74 and 20,402.49 is: 28,162.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,549.59 : 47,690.74 = 20,402.49 : x
  2. Step 2: Convert to fraction form
    34,549.59/47,690.74 = 20,402.49/x
  3. Step 3: Cross multiply
    34,549.59x = 47,690.74 × 20,402.49
  4. Step 4: Simplify right side
    34,549.59x = 973,009,845.94
  5. Step 5: Solve for x
    x = 973,009,845.94/34,549.59
  6. Step 6: Final answer
    x = 28,162.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.