Home / 29,357.48-40,513.49-15,928.76

Finding the Fourth Proportional to 29,357.48, 40,513.49 and 15,928.76

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Solution

The fourth proportional to 29,357.48, 40,513.49 and 15,928.76 is: 21,981.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,357.48 : 40,513.49 = 15,928.76 : x
  2. Step 2: Convert to fraction form
    29,357.48/40,513.49 = 15,928.76/x
  3. Step 3: Cross multiply
    29,357.48x = 40,513.49 × 15,928.76
  4. Step 4: Simplify right side
    29,357.48x = 645,329,376.76
  5. Step 5: Solve for x
    x = 645,329,376.76/29,357.48
  6. Step 6: Final answer
    x = 21,981.77

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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.