Home / 20,924.04-28,875.18-11,363.91

Finding the Fourth Proportional to 20,924.04, 28,875.18 and 11,363.91

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Solution

The fourth proportional to 20,924.04, 28,875.18 and 11,363.91 is: 15,682.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,924.04 : 28,875.18 = 11,363.91 : x
  2. Step 2: Convert to fraction form
    20,924.04/28,875.18 = 11,363.91/x
  3. Step 3: Cross multiply
    20,924.04x = 28,875.18 × 11,363.91
  4. Step 4: Simplify right side
    20,924.04x = 328,134,946.75
  5. Step 5: Solve for x
    x = 328,134,946.75/20,924.04
  6. Step 6: Final answer
    x = 15,682.20

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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.