Home / 28,088.56-38,768.28-19,157.40

Finding the Fourth Proportional to 28,088.56, 38,768.28 and 19,157.40

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Solution

The fourth proportional to 28,088.56, 38,768.28 and 19,157.40 is: 26,441.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,088.56 : 38,768.28 = 19,157.40 : x
  2. Step 2: Convert to fraction form
    28,088.56/38,768.28 = 19,157.40/x
  3. Step 3: Cross multiply
    28,088.56x = 38,768.28 × 19,157.40
  4. Step 4: Simplify right side
    28,088.56x = 742,699,447.27
  5. Step 5: Solve for x
    x = 742,699,447.27/28,088.56
  6. Step 6: Final answer
    x = 26,441.35

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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.