Home / 28,048.02-38,706.12-15,301.20

Finding the Fourth Proportional to 28,048.02, 38,706.12 and 15,301.20

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Solution

The fourth proportional to 28,048.02, 38,706.12 and 15,301.20 is: 21,115.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,048.02 : 38,706.12 = 15,301.20 : x
  2. Step 2: Convert to fraction form
    28,048.02/38,706.12 = 15,301.20/x
  3. Step 3: Cross multiply
    28,048.02x = 38,706.12 × 15,301.20
  4. Step 4: Simplify right side
    28,048.02x = 592,250,083.34
  5. Step 5: Solve for x
    x = 592,250,083.34/28,048.02
  6. Step 6: Final answer
    x = 21,115.58

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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.