Home / 19,538.02-29,307.02-13,720.60

Finding the Fourth Proportional to 19,538.02, 29,307.02 and 13,720.60

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Solution

The fourth proportional to 19,538.02, 29,307.02 and 13,720.60 is: 20,580.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,538.02 : 29,307.02 = 13,720.60 : x
  2. Step 2: Convert to fraction form
    19,538.02/29,307.02 = 13,720.60/x
  3. Step 3: Cross multiply
    19,538.02x = 29,307.02 × 13,720.60
  4. Step 4: Simplify right side
    19,538.02x = 402,109,898.61
  5. Step 5: Solve for x
    x = 402,109,898.61/19,538.02
  6. Step 6: Final answer
    x = 20,580.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.