Home / 28,428.50-42,586.86-26,810.12

Finding the Fourth Proportional to 28,428.50, 42,586.86 and 26,810.12

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Solution

The fourth proportional to 28,428.50, 42,586.86 and 26,810.12 is: 40,162.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,428.50 : 42,586.86 = 26,810.12 : x
  2. Step 2: Convert to fraction form
    28,428.50/42,586.86 = 26,810.12/x
  3. Step 3: Cross multiply
    28,428.50x = 42,586.86 × 26,810.12
  4. Step 4: Simplify right side
    28,428.50x = 1,141,758,827.02
  5. Step 5: Solve for x
    x = 1,141,758,827.02/28,428.50
  6. Step 6: Final answer
    x = 40,162.47

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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.