Home / 28,312.69-39,071.98-15,566.41

Finding the Fourth Proportional to 28,312.69, 39,071.98 and 15,566.41

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Solution

The fourth proportional to 28,312.69, 39,071.98 and 15,566.41 is: 21,481.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,312.69 : 39,071.98 = 15,566.41 : x
  2. Step 2: Convert to fraction form
    28,312.69/39,071.98 = 15,566.41/x
  3. Step 3: Cross multiply
    28,312.69x = 39,071.98 × 15,566.41
  4. Step 4: Simplify right side
    28,312.69x = 608,210,460.19
  5. Step 5: Solve for x
    x = 608,210,460.19/28,312.69
  6. Step 6: Final answer
    x = 21,481.90

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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.