Home / 20,695.16-28,565.37-13,526.12

Finding the Fourth Proportional to 20,695.16, 28,565.37 and 13,526.12

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Solution

The fourth proportional to 20,695.16, 28,565.37 and 13,526.12 is: 18,670.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,695.16 : 28,565.37 = 13,526.12 : x
  2. Step 2: Convert to fraction form
    20,695.16/28,565.37 = 13,526.12/x
  3. Step 3: Cross multiply
    20,695.16x = 28,565.37 × 13,526.12
  4. Step 4: Simplify right side
    20,695.16x = 386,378,693.88
  5. Step 5: Solve for x
    x = 386,378,693.88/20,695.16
  6. Step 6: Final answer
    x = 18,670.00

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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.