Home / 39,455.72-59,215-20,746.74

Finding the Fourth Proportional to 39,455.72, 59,215 and 20,746.74

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Solution

The fourth proportional to 39,455.72, 59,215 and 20,746.74 is: 31,136.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,455.72 : 59,215 = 20,746.74 : x
  2. Step 2: Convert to fraction form
    39,455.72/59,215 = 20,746.74/x
  3. Step 3: Cross multiply
    39,455.72x = 59,215 × 20,746.74
  4. Step 4: Simplify right side
    39,455.72x = 1,228,518,209.10
  5. Step 5: Solve for x
    x = 1,228,518,209.10/39,455.72
  6. Step 6: Final answer
    x = 31,136.63

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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.