Home / 38,718.68-53,434.12-22,813.74

Finding the Fourth Proportional to 38,718.68, 53,434.12 and 22,813.74

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Solution

The fourth proportional to 38,718.68, 53,434.12 and 22,813.74 is: 31,484.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,718.68 : 53,434.12 = 22,813.74 : x
  2. Step 2: Convert to fraction form
    38,718.68/53,434.12 = 22,813.74/x
  3. Step 3: Cross multiply
    38,718.68x = 53,434.12 × 22,813.74
  4. Step 4: Simplify right side
    38,718.68x = 1,219,032,120.81
  5. Step 5: Solve for x
    x = 1,219,032,120.81/38,718.68
  6. Step 6: Final answer
    x = 31,484.34

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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.