Home / 20,547.57-30,672.71-18,056.46

Finding the Fourth Proportional to 20,547.57, 30,672.71 and 18,056.46

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Solution

The fourth proportional to 20,547.57, 30,672.71 and 18,056.46 is: 26,954.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,547.57 : 30,672.71 = 18,056.46 : x
  2. Step 2: Convert to fraction form
    20,547.57/30,672.71 = 18,056.46/x
  3. Step 3: Cross multiply
    20,547.57x = 30,672.71 × 18,056.46
  4. Step 4: Simplify right side
    20,547.57x = 553,840,470.92
  5. Step 5: Solve for x
    x = 553,840,470.92/20,547.57
  6. Step 6: Final answer
    x = 26,954.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.