Home / 25,136.72-34,688.88-15,710.80

Finding the Fourth Proportional to 25,136.72, 34,688.88 and 15,710.80

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Solution

The fourth proportional to 25,136.72, 34,688.88 and 15,710.80 is: 21,681.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,136.72 : 34,688.88 = 15,710.80 : x
  2. Step 2: Convert to fraction form
    25,136.72/34,688.88 = 15,710.80/x
  3. Step 3: Cross multiply
    25,136.72x = 34,688.88 × 15,710.80
  4. Step 4: Simplify right side
    25,136.72x = 544,990,055.90
  5. Step 5: Solve for x
    x = 544,990,055.90/25,136.72
  6. Step 6: Final answer
    x = 21,681.03

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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.