Home / 28,263.04-39,001.68-15,515.96

Finding the Fourth Proportional to 28,263.04, 39,001.68 and 15,515.96

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Solution

The fourth proportional to 28,263.04, 39,001.68 and 15,515.96 is: 21,411.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,263.04 : 39,001.68 = 15,515.96 : x
  2. Step 2: Convert to fraction form
    28,263.04/39,001.68 = 15,515.96/x
  3. Step 3: Cross multiply
    28,263.04x = 39,001.68 × 15,515.96
  4. Step 4: Simplify right side
    28,263.04x = 605,148,506.81
  5. Step 5: Solve for x
    x = 605,148,506.81/28,263.04
  6. Step 6: Final answer
    x = 21,411.30

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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.