Home / 20,924.14-31,386.20-5,341.76

Finding the Fourth Proportional to 20,924.14, 31,386.20 and 5,341.76

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Solution

The fourth proportional to 20,924.14, 31,386.20 and 5,341.76 is: 8,012.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,924.14 : 31,386.20 = 5,341.76 : x
  2. Step 2: Convert to fraction form
    20,924.14/31,386.20 = 5,341.76/x
  3. Step 3: Cross multiply
    20,924.14x = 31,386.20 × 5,341.76
  4. Step 4: Simplify right side
    20,924.14x = 167,657,547.71
  5. Step 5: Solve for x
    x = 167,657,547.71/20,924.14
  6. Step 6: Final answer
    x = 8,012.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.