Home / 22,543.48-31,109.68-12,471.68

Finding the Fourth Proportional to 22,543.48, 31,109.68 and 12,471.68

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Solution

The fourth proportional to 22,543.48, 31,109.68 and 12,471.68 is: 17,210.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,543.48 : 31,109.68 = 12,471.68 : x
  2. Step 2: Convert to fraction form
    22,543.48/31,109.68 = 12,471.68/x
  3. Step 3: Cross multiply
    22,543.48x = 31,109.68 × 12,471.68
  4. Step 4: Simplify right side
    22,543.48x = 387,989,973.86
  5. Step 5: Solve for x
    x = 387,989,973.86/22,543.48
  6. Step 6: Final answer
    x = 17,210.74

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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.