Home / 22,160.12-30,580.75-12,088.47

Finding the Fourth Proportional to 22,160.12, 30,580.75 and 12,088.47

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Solution

The fourth proportional to 22,160.12, 30,580.75 and 12,088.47 is: 16,681.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,160.12 : 30,580.75 = 12,088.47 : x
  2. Step 2: Convert to fraction form
    22,160.12/30,580.75 = 12,088.47/x
  3. Step 3: Cross multiply
    22,160.12x = 30,580.75 × 12,088.47
  4. Step 4: Simplify right side
    22,160.12x = 369,674,561.23
  5. Step 5: Solve for x
    x = 369,674,561.23/22,160.12
  6. Step 6: Final answer
    x = 16,681.98

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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.