Home / 28,559.89-39,411.35-15,812.17

Finding the Fourth Proportional to 28,559.89, 39,411.35 and 15,812.17

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Solution

The fourth proportional to 28,559.89, 39,411.35 and 15,812.17 is: 21,820.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,559.89 : 39,411.35 = 15,812.17 : x
  2. Step 2: Convert to fraction form
    28,559.89/39,411.35 = 15,812.17/x
  3. Step 3: Cross multiply
    28,559.89x = 39,411.35 × 15,812.17
  4. Step 4: Simplify right side
    28,559.89x = 623,178,690.01
  5. Step 5: Solve for x
    x = 623,178,690.01/28,559.89
  6. Step 6: Final answer
    x = 21,820.07

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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.