Home / 28,098.02-38,774.76-15,522.50

Finding the Fourth Proportional to 28,098.02, 38,774.76 and 15,522.50

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Solution

The fourth proportional to 28,098.02, 38,774.76 and 15,522.50 is: 21,420.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,098.02 : 38,774.76 = 15,522.50 : x
  2. Step 2: Convert to fraction form
    28,098.02/38,774.76 = 15,522.50/x
  3. Step 3: Cross multiply
    28,098.02x = 38,774.76 × 15,522.50
  4. Step 4: Simplify right side
    28,098.02x = 601,881,212.10
  5. Step 5: Solve for x
    x = 601,881,212.10/28,098.02
  6. Step 6: Final answer
    x = 21,420.77

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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.