Home / 27,762.90-38,312.70-15,187.62

Finding the Fourth Proportional to 27,762.90, 38,312.70 and 15,187.62

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Solution

The fourth proportional to 27,762.90, 38,312.70 and 15,187.62 is: 20,958.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,762.90 : 38,312.70 = 15,187.62 : x
  2. Step 2: Convert to fraction form
    27,762.90/38,312.70 = 15,187.62/x
  3. Step 3: Cross multiply
    27,762.90x = 38,312.70 × 15,187.62
  4. Step 4: Simplify right side
    27,762.90x = 581,878,728.77
  5. Step 5: Solve for x
    x = 581,878,728.77/27,762.90
  6. Step 6: Final answer
    x = 20,958.86

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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.