Home / 19,280.40-28,905.93-13,341.50

Finding the Fourth Proportional to 19,280.40, 28,905.93 and 13,341.50

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Solution

The fourth proportional to 19,280.40, 28,905.93 and 13,341.50 is: 20,002.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,280.40 : 28,905.93 = 13,341.50 : x
  2. Step 2: Convert to fraction form
    19,280.40/28,905.93 = 13,341.50/x
  3. Step 3: Cross multiply
    19,280.40x = 28,905.93 × 13,341.50
  4. Step 4: Simplify right side
    19,280.40x = 385,648,428.96
  5. Step 5: Solve for x
    x = 385,648,428.96/19,280.40
  6. Step 6: Final answer
    x = 20,002.10

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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.