Home / 28,527.77-42,779.17-13,539.17

Finding the Fourth Proportional to 28,527.77, 42,779.17 and 13,539.17

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Solution

The fourth proportional to 28,527.77, 42,779.17 and 13,539.17 is: 20,302.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,527.77 : 42,779.17 = 13,539.17 : x
  2. Step 2: Convert to fraction form
    28,527.77/42,779.17 = 13,539.17/x
  3. Step 3: Cross multiply
    28,527.77x = 42,779.17 × 13,539.17
  4. Step 4: Simplify right side
    28,527.77x = 579,194,528.19
  5. Step 5: Solve for x
    x = 579,194,528.19/28,527.77
  6. Step 6: Final answer
    x = 20,302.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.