Home / 28,263.35-42,395.94-14,215.71

Finding the Fourth Proportional to 28,263.35, 42,395.94 and 14,215.71

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Solution

The fourth proportional to 28,263.35, 42,395.94 and 14,215.71 is: 21,324.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,263.35 : 42,395.94 = 14,215.71 : x
  2. Step 2: Convert to fraction form
    28,263.35/42,395.94 = 14,215.71/x
  3. Step 3: Cross multiply
    28,263.35x = 42,395.94 × 14,215.71
  4. Step 4: Simplify right side
    28,263.35x = 602,688,547.20
  5. Step 5: Solve for x
    x = 602,688,547.20/28,263.35
  6. Step 6: Final answer
    x = 21,324.03

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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.