Home / 25,675.60-38,513.40-15,782.80

Finding the Fourth Proportional to 25,675.60, 38,513.40 and 15,782.80

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Solution

The fourth proportional to 25,675.60, 38,513.40 and 15,782.80 is: 23,674.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,675.60 : 38,513.40 = 15,782.80 : x
  2. Step 2: Convert to fraction form
    25,675.60/38,513.40 = 15,782.80/x
  3. Step 3: Cross multiply
    25,675.60x = 38,513.40 × 15,782.80
  4. Step 4: Simplify right side
    25,675.60x = 607,849,289.52
  5. Step 5: Solve for x
    x = 607,849,289.52/25,675.60
  6. Step 6: Final answer
    x = 23,674.20

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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.