Home / 39,970.74-55,159.64-22,065.76

Finding the Fourth Proportional to 39,970.74, 55,159.64 and 22,065.76

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Solution

The fourth proportional to 39,970.74, 55,159.64 and 22,065.76 is: 30,450.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,970.74 : 55,159.64 = 22,065.76 : x
  2. Step 2: Convert to fraction form
    39,970.74/55,159.64 = 22,065.76/x
  3. Step 3: Cross multiply
    39,970.74x = 55,159.64 × 22,065.76
  4. Step 4: Simplify right side
    39,970.74x = 1,217,139,377.93
  5. Step 5: Solve for x
    x = 1,217,139,377.93/39,970.74
  6. Step 6: Final answer
    x = 30,450.76

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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.