Home / 26,772.68-40,107.18-12,931.40

Finding the Fourth Proportional to 26,772.68, 40,107.18 and 12,931.40

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Solution

The fourth proportional to 26,772.68, 40,107.18 and 12,931.40 is: 19,372.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,772.68 : 40,107.18 = 12,931.40 : x
  2. Step 2: Convert to fraction form
    26,772.68/40,107.18 = 12,931.40/x
  3. Step 3: Cross multiply
    26,772.68x = 40,107.18 × 12,931.40
  4. Step 4: Simplify right side
    26,772.68x = 518,641,987.45
  5. Step 5: Solve for x
    x = 518,641,987.45/26,772.68
  6. Step 6: Final answer
    x = 19,372.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.