Home / 28,301.40-42,394.30-13,465.48

Finding the Fourth Proportional to 28,301.40, 42,394.30 and 13,465.48

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Solution

The fourth proportional to 28,301.40, 42,394.30 and 13,465.48 is: 20,170.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,301.40 : 42,394.30 = 13,465.48 : x
  2. Step 2: Convert to fraction form
    28,301.40/42,394.30 = 13,465.48/x
  3. Step 3: Cross multiply
    28,301.40x = 42,394.30 × 13,465.48
  4. Step 4: Simplify right side
    28,301.40x = 570,859,598.76
  5. Step 5: Solve for x
    x = 570,859,598.76/28,301.40
  6. Step 6: Final answer
    x = 20,170.72

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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.