Home / 22,530.14-31,088.88-12,457.22

Finding the Fourth Proportional to 22,530.14, 31,088.88 and 12,457.22

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Solution

The fourth proportional to 22,530.14, 31,088.88 and 12,457.22 is: 17,189.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,530.14 : 31,088.88 = 12,457.22 : x
  2. Step 2: Convert to fraction form
    22,530.14/31,088.88 = 12,457.22/x
  3. Step 3: Cross multiply
    22,530.14x = 31,088.88 × 12,457.22
  4. Step 4: Simplify right side
    22,530.14x = 387,281,017.71
  5. Step 5: Solve for x
    x = 387,281,017.71/22,530.14
  6. Step 6: Final answer
    x = 17,189.46

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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.