Home / 28,101.64-38,779.74-15,526.12

Finding the Fourth Proportional to 28,101.64, 38,779.74 and 15,526.12

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Solution

The fourth proportional to 28,101.64, 38,779.74 and 15,526.12 is: 21,425.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,101.64 : 38,779.74 = 15,526.12 : x
  2. Step 2: Convert to fraction form
    28,101.64/38,779.74 = 15,526.12/x
  3. Step 3: Cross multiply
    28,101.64x = 38,779.74 × 15,526.12
  4. Step 4: Simplify right side
    28,101.64x = 602,098,896.81
  5. Step 5: Solve for x
    x = 602,098,896.81/28,101.64
  6. Step 6: Final answer
    x = 21,425.76

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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.