Home / 25,557.24-38,357.86-9,985.80

Finding the Fourth Proportional to 25,557.24, 38,357.86 and 9,985.80

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Solution

The fourth proportional to 25,557.24, 38,357.86 and 9,985.80 is: 14,987.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,557.24 : 38,357.86 = 9,985.80 : x
  2. Step 2: Convert to fraction form
    25,557.24/38,357.86 = 9,985.80/x
  3. Step 3: Cross multiply
    25,557.24x = 38,357.86 × 9,985.80
  4. Step 4: Simplify right side
    25,557.24x = 383,033,918.39
  5. Step 5: Solve for x
    x = 383,033,918.39/25,557.24
  6. Step 6: Final answer
    x = 14,987.30

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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.