Home / 43,479.32-59,980.10-28,365

Finding the Fourth Proportional to 43,479.32, 59,980.10 and 28,365

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Solution

The fourth proportional to 43,479.32, 59,980.10 and 28,365 is: 39,129.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,479.32 : 59,980.10 = 28,365 : x
  2. Step 2: Convert to fraction form
    43,479.32/59,980.10 = 28,365/x
  3. Step 3: Cross multiply
    43,479.32x = 59,980.10 × 28,365
  4. Step 4: Simplify right side
    43,479.32x = 1,701,335,536.50
  5. Step 5: Solve for x
    x = 1,701,335,536.50/43,479.32
  6. Step 6: Final answer
    x = 39,129.76

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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.