Home / 22,619.70-31,212.18-12,547.62

Finding the Fourth Proportional to 22,619.70, 31,212.18 and 12,547.62

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Solution

The fourth proportional to 22,619.70, 31,212.18 and 12,547.62 is: 17,314.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,619.70 : 31,212.18 = 12,547.62 : x
  2. Step 2: Convert to fraction form
    22,619.70/31,212.18 = 12,547.62/x
  3. Step 3: Cross multiply
    22,619.70x = 31,212.18 × 12,547.62
  4. Step 4: Simplify right side
    22,619.70x = 391,638,574.01
  5. Step 5: Solve for x
    x = 391,638,574.01/22,619.70
  6. Step 6: Final answer
    x = 17,314.05

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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.