Home / 25,312.92-34,931.61-13,983.21

Finding the Fourth Proportional to 25,312.92, 34,931.61 and 13,983.21

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Solution

The fourth proportional to 25,312.92, 34,931.61 and 13,983.21 is: 19,296.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,312.92 : 34,931.61 = 13,983.21 : x
  2. Step 2: Convert to fraction form
    25,312.92/34,931.61 = 13,983.21/x
  3. Step 3: Cross multiply
    25,312.92x = 34,931.61 × 13,983.21
  4. Step 4: Simplify right side
    25,312.92x = 488,455,950.94
  5. Step 5: Solve for x
    x = 488,455,950.94/25,312.92
  6. Step 6: Final answer
    x = 19,296.70

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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.