Home / 22,856.43-31,541.64-12,784.74

Finding the Fourth Proportional to 22,856.43, 31,541.64 and 12,784.74

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Solution

The fourth proportional to 22,856.43, 31,541.64 and 12,784.74 is: 17,642.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,856.43 : 31,541.64 = 12,784.74 : x
  2. Step 2: Convert to fraction form
    22,856.43/31,541.64 = 12,784.74/x
  3. Step 3: Cross multiply
    22,856.43x = 31,541.64 × 12,784.74
  4. Step 4: Simplify right side
    22,856.43x = 403,251,666.57
  5. Step 5: Solve for x
    x = 403,251,666.57/22,856.43
  6. Step 6: Final answer
    x = 17,642.81

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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.