Home / 51,019.52-70,403.84-28,357.76

Finding the Fourth Proportional to 51,019.52, 70,403.84 and 28,357.76

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Solution

The fourth proportional to 51,019.52, 70,403.84 and 28,357.76 is: 39,131.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,019.52 : 70,403.84 = 28,357.76 : x
  2. Step 2: Convert to fraction form
    51,019.52/70,403.84 = 28,357.76/x
  3. Step 3: Cross multiply
    51,019.52x = 70,403.84 × 28,357.76
  4. Step 4: Simplify right side
    51,019.52x = 1,996,495,197.80
  5. Step 5: Solve for x
    x = 1,996,495,197.80/51,019.52
  6. Step 6: Final answer
    x = 39,131.99

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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.