Home / 20,537.02-30,656.96-18,045.90

Finding the Fourth Proportional to 20,537.02, 30,656.96 and 18,045.90

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Solution

The fourth proportional to 20,537.02, 30,656.96 and 18,045.90 is: 26,938.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,537.02 : 30,656.96 = 18,045.90 : x
  2. Step 2: Convert to fraction form
    20,537.02/30,656.96 = 18,045.90/x
  3. Step 3: Cross multiply
    20,537.02x = 30,656.96 × 18,045.90
  4. Step 4: Simplify right side
    20,537.02x = 553,232,434.46
  5. Step 5: Solve for x
    x = 553,232,434.46/20,537.02
  6. Step 6: Final answer
    x = 26,938.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.