Home / 39,547.65-54,575.76-21,642.67

Finding the Fourth Proportional to 39,547.65, 54,575.76 and 21,642.67

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Solution

The fourth proportional to 39,547.65, 54,575.76 and 21,642.67 is: 29,866.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,547.65 : 54,575.76 = 21,642.67 : x
  2. Step 2: Convert to fraction form
    39,547.65/54,575.76 = 21,642.67/x
  3. Step 3: Cross multiply
    39,547.65x = 54,575.76 × 21,642.67
  4. Step 4: Simplify right side
    39,547.65x = 1,181,165,163.68
  5. Step 5: Solve for x
    x = 1,181,165,163.68/39,547.65
  6. Step 6: Final answer
    x = 29,866.89

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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.