Home / 25,345.48-38,015.78-7,810.60

Finding the Fourth Proportional to 25,345.48, 38,015.78 and 7,810.60

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Solution

The fourth proportional to 25,345.48, 38,015.78 and 7,810.60 is: 11,715.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,345.48 : 38,015.78 = 7,810.60 : x
  2. Step 2: Convert to fraction form
    25,345.48/38,015.78 = 7,810.60/x
  3. Step 3: Cross multiply
    25,345.48x = 38,015.78 × 7,810.60
  4. Step 4: Simplify right side
    25,345.48x = 296,926,051.27
  5. Step 5: Solve for x
    x = 296,926,051.27/25,345.48
  6. Step 6: Final answer
    x = 11,715.15

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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.