Home / 28,013.04-38,658.64-15,266.70

Finding the Fourth Proportional to 28,013.04, 38,658.64 and 15,266.70

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Solution

The fourth proportional to 28,013.04, 38,658.64 and 15,266.70 is: 21,068.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,013.04 : 38,658.64 = 15,266.70 : x
  2. Step 2: Convert to fraction form
    28,013.04/38,658.64 = 15,266.70/x
  3. Step 3: Cross multiply
    28,013.04x = 38,658.64 × 15,266.70
  4. Step 4: Simplify right side
    28,013.04x = 590,190,001.41
  5. Step 5: Solve for x
    x = 590,190,001.41/28,013.04
  6. Step 6: Final answer
    x = 21,068.40

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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.