Home / 28,502.83-42,762.08-11,870.65

Finding the Fourth Proportional to 28,502.83, 42,762.08 and 11,870.65

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Solution

The fourth proportional to 28,502.83, 42,762.08 and 11,870.65 is: 17,809.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,502.83 : 42,762.08 = 11,870.65 : x
  2. Step 2: Convert to fraction form
    28,502.83/42,762.08 = 11,870.65/x
  3. Step 3: Cross multiply
    28,502.83x = 42,762.08 × 11,870.65
  4. Step 4: Simplify right side
    28,502.83x = 507,613,684.95
  5. Step 5: Solve for x
    x = 507,613,684.95/28,502.83
  6. Step 6: Final answer
    x = 17,809.24

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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.