Home / 25,342.02-38,039.76-20,715.30

Finding the Fourth Proportional to 25,342.02, 38,039.76 and 20,715.30

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Solution

The fourth proportional to 25,342.02, 38,039.76 and 20,715.30 is: 31,094.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,342.02 : 38,039.76 = 20,715.30 : x
  2. Step 2: Convert to fraction form
    25,342.02/38,039.76 = 20,715.30/x
  3. Step 3: Cross multiply
    25,342.02x = 38,039.76 × 20,715.30
  4. Step 4: Simplify right side
    25,342.02x = 788,005,040.33
  5. Step 5: Solve for x
    x = 788,005,040.33/25,342.02
  6. Step 6: Final answer
    x = 31,094.80

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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.