Home / 21,938.02-30,266.58-12,501.12

Finding the Fourth Proportional to 21,938.02, 30,266.58 and 12,501.12

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Solution

The fourth proportional to 21,938.02, 30,266.58 and 12,501.12 is: 17,247.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,938.02 : 30,266.58 = 12,501.12 : x
  2. Step 2: Convert to fraction form
    21,938.02/30,266.58 = 12,501.12/x
  3. Step 3: Cross multiply
    21,938.02x = 30,266.58 × 12,501.12
  4. Step 4: Simplify right side
    21,938.02x = 378,366,148.57
  5. Step 5: Solve for x
    x = 378,366,148.57/21,938.02
  6. Step 6: Final answer
    x = 17,247.05

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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.