Home / 20,627.02-28,477.50-13,565.62

Finding the Fourth Proportional to 20,627.02, 28,477.50 and 13,565.62

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Solution

The fourth proportional to 20,627.02, 28,477.50 and 13,565.62 is: 18,728.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,627.02 : 28,477.50 = 13,565.62 : x
  2. Step 2: Convert to fraction form
    20,627.02/28,477.50 = 13,565.62/x
  3. Step 3: Cross multiply
    20,627.02x = 28,477.50 × 13,565.62
  4. Step 4: Simplify right side
    20,627.02x = 386,314,943.55
  5. Step 5: Solve for x
    x = 386,314,943.55/20,627.02
  6. Step 6: Final answer
    x = 18,728.59

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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.