Home / 21,963.89-30,302.29-12,526.99

Finding the Fourth Proportional to 21,963.89, 30,302.29 and 12,526.99

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Solution

The fourth proportional to 21,963.89, 30,302.29 and 12,526.99 is: 17,282.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,963.89 : 30,302.29 = 12,526.99 : x
  2. Step 2: Convert to fraction form
    21,963.89/30,302.29 = 12,526.99/x
  3. Step 3: Cross multiply
    21,963.89x = 30,302.29 × 12,526.99
  4. Step 4: Simplify right side
    21,963.89x = 379,596,483.81
  5. Step 5: Solve for x
    x = 379,596,483.81/21,963.89
  6. Step 6: Final answer
    x = 17,282.75

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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.