Home / 22,528.85-31,088.93-12,456.63

Finding the Fourth Proportional to 22,528.85, 31,088.93 and 12,456.63

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Solution

The fourth proportional to 22,528.85, 31,088.93 and 12,456.63 is: 17,189.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,528.85 : 31,088.93 = 12,456.63 : x
  2. Step 2: Convert to fraction form
    22,528.85/31,088.93 = 12,456.63/x
  3. Step 3: Cross multiply
    22,528.85x = 31,088.93 × 12,456.63
  4. Step 4: Simplify right side
    22,528.85x = 387,263,235.82
  5. Step 5: Solve for x
    x = 387,263,235.82/22,528.85
  6. Step 6: Final answer
    x = 17,189.66

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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.