Home / 28,802.28-43,095.64-20,501.40

Finding the Fourth Proportional to 28,802.28, 43,095.64 and 20,501.40

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Solution

The fourth proportional to 28,802.28, 43,095.64 and 20,501.40 is: 30,675.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,802.28 : 43,095.64 = 20,501.40 : x
  2. Step 2: Convert to fraction form
    28,802.28/43,095.64 = 20,501.40/x
  3. Step 3: Cross multiply
    28,802.28x = 43,095.64 × 20,501.40
  4. Step 4: Simplify right side
    28,802.28x = 883,520,953.90
  5. Step 5: Solve for x
    x = 883,520,953.90/28,802.28
  6. Step 6: Final answer
    x = 30,675.38

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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.