Home / 25,938.72-38,904.30-13,421.52

Finding the Fourth Proportional to 25,938.72, 38,904.30 and 13,421.52

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Solution

The fourth proportional to 25,938.72, 38,904.30 and 13,421.52 is: 20,130.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,938.72 : 38,904.30 = 13,421.52 : x
  2. Step 2: Convert to fraction form
    25,938.72/38,904.30 = 13,421.52/x
  3. Step 3: Cross multiply
    25,938.72x = 38,904.30 × 13,421.52
  4. Step 4: Simplify right side
    25,938.72x = 522,154,840.54
  5. Step 5: Solve for x
    x = 522,154,840.54/25,938.72
  6. Step 6: Final answer
    x = 20,130.32

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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.