Home / 25,136.25-34,688.42-13,806.91

Finding the Fourth Proportional to 25,136.25, 34,688.42 and 13,806.91

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Solution

The fourth proportional to 25,136.25, 34,688.42 and 13,806.91 is: 19,053.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,136.25 : 34,688.42 = 13,806.91 : x
  2. Step 2: Convert to fraction form
    25,136.25/34,688.42 = 13,806.91/x
  3. Step 3: Cross multiply
    25,136.25x = 34,688.42 × 13,806.91
  4. Step 4: Simplify right side
    25,136.25x = 478,939,650.51
  5. Step 5: Solve for x
    x = 478,939,650.51/25,136.25
  6. Step 6: Final answer
    x = 19,053.74

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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.