Home / 28,714.60-39,623.34-16,139.08

Finding the Fourth Proportional to 28,714.60, 39,623.34 and 16,139.08

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Solution

The fourth proportional to 28,714.60, 39,623.34 and 16,139.08 is: 22,270.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,714.60 : 39,623.34 = 16,139.08 : x
  2. Step 2: Convert to fraction form
    28,714.60/39,623.34 = 16,139.08/x
  3. Step 3: Cross multiply
    28,714.60x = 39,623.34 × 16,139.08
  4. Step 4: Simplify right side
    28,714.60x = 639,484,254.13
  5. Step 5: Solve for x
    x = 639,484,254.13/28,714.60
  6. Step 6: Final answer
    x = 22,270.35

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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.