Home / 28,521.04-39,402.60-22,790.96

Finding the Fourth Proportional to 28,521.04, 39,402.60 and 22,790.96

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Solution

The fourth proportional to 28,521.04, 39,402.60 and 22,790.96 is: 31,486.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,521.04 : 39,402.60 = 22,790.96 : x
  2. Step 2: Convert to fraction form
    28,521.04/39,402.60 = 22,790.96/x
  3. Step 3: Cross multiply
    28,521.04x = 39,402.60 × 22,790.96
  4. Step 4: Simplify right side
    28,521.04x = 898,023,080.50
  5. Step 5: Solve for x
    x = 898,023,080.50/28,521.04
  6. Step 6: Final answer
    x = 31,486.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.