Home / 28,444.58-39,210.36-20,483.90

Finding the Fourth Proportional to 28,444.58, 39,210.36 and 20,483.90

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Solution

The fourth proportional to 28,444.58, 39,210.36 and 20,483.90 is: 28,236.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,444.58 : 39,210.36 = 20,483.90 : x
  2. Step 2: Convert to fraction form
    28,444.58/39,210.36 = 20,483.90/x
  3. Step 3: Cross multiply
    28,444.58x = 39,210.36 × 20,483.90
  4. Step 4: Simplify right side
    28,444.58x = 803,180,967.38
  5. Step 5: Solve for x
    x = 803,180,967.38/28,444.58
  6. Step 6: Final answer
    x = 28,236.70

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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.