Home / 51,020.07-70,403.64-28,357.28

Finding the Fourth Proportional to 51,020.07, 70,403.64 and 28,357.28

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Solution

The fourth proportional to 51,020.07, 70,403.64 and 28,357.28 is: 39,130.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,020.07 : 70,403.64 = 28,357.28 : x
  2. Step 2: Convert to fraction form
    51,020.07/70,403.64 = 28,357.28/x
  3. Step 3: Cross multiply
    51,020.07x = 70,403.64 × 28,357.28
  4. Step 4: Simplify right side
    51,020.07x = 1,996,455,732.50
  5. Step 5: Solve for x
    x = 1,996,455,732.50/51,020.07
  6. Step 6: Final answer
    x = 39,130.79

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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.