Home / 22,619.52-31,214.96-12,547.60

Finding the Fourth Proportional to 22,619.52, 31,214.96 and 12,547.60

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Solution

The fourth proportional to 22,619.52, 31,214.96 and 12,547.60 is: 17,315.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,619.52 : 31,214.96 = 12,547.60 : x
  2. Step 2: Convert to fraction form
    22,619.52/31,214.96 = 12,547.60/x
  3. Step 3: Cross multiply
    22,619.52x = 31,214.96 × 12,547.60
  4. Step 4: Simplify right side
    22,619.52x = 391,672,832.10
  5. Step 5: Solve for x
    x = 391,672,832.10/22,619.52
  6. Step 6: Final answer
    x = 17,315.70

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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.