Home / 22,140.48-30,547.68-12,705.60

Finding the Fourth Proportional to 22,140.48, 30,547.68 and 12,705.60

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Solution

The fourth proportional to 22,140.48, 30,547.68 and 12,705.60 is: 17,530.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,140.48 : 30,547.68 = 12,705.60 : x
  2. Step 2: Convert to fraction form
    22,140.48/30,547.68 = 12,705.60/x
  3. Step 3: Cross multiply
    22,140.48x = 30,547.68 × 12,705.60
  4. Step 4: Simplify right side
    22,140.48x = 388,126,603.01
  5. Step 5: Solve for x
    x = 388,126,603.01/22,140.48
  6. Step 6: Final answer
    x = 17,530.18

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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.