Home / 25,925.70-38,899.47-15,415.80

Finding the Fourth Proportional to 25,925.70, 38,899.47 and 15,415.80

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Solution

The fourth proportional to 25,925.70, 38,899.47 and 15,415.80 is: 23,130.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,925.70 : 38,899.47 = 15,415.80 : x
  2. Step 2: Convert to fraction form
    25,925.70/38,899.47 = 15,415.80/x
  3. Step 3: Cross multiply
    25,925.70x = 38,899.47 × 15,415.80
  4. Step 4: Simplify right side
    25,925.70x = 599,666,449.63
  5. Step 5: Solve for x
    x = 599,666,449.63/25,925.70
  6. Step 6: Final answer
    x = 23,130.19

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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.