Home / 28,062.83-38,726.93-15,316.12

Finding the Fourth Proportional to 28,062.83, 38,726.93 and 15,316.12

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Solution

The fourth proportional to 28,062.83, 38,726.93 and 15,316.12 is: 21,136.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,062.83 : 38,726.93 = 15,316.12 : x
  2. Step 2: Convert to fraction form
    28,062.83/38,726.93 = 15,316.12/x
  3. Step 3: Cross multiply
    28,062.83x = 38,726.93 × 15,316.12
  4. Step 4: Simplify right side
    28,062.83x = 593,146,307.11
  5. Step 5: Solve for x
    x = 593,146,307.11/28,062.83
  6. Step 6: Final answer
    x = 21,136.37

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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.