Home / 28,501.53-42,693.98-16,779.21

Finding the Fourth Proportional to 28,501.53, 42,693.98 and 16,779.21

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Solution

The fourth proportional to 28,501.53, 42,693.98 and 16,779.21 is: 25,134.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,501.53 : 42,693.98 = 16,779.21 : x
  2. Step 2: Convert to fraction form
    28,501.53/42,693.98 = 16,779.21/x
  3. Step 3: Cross multiply
    28,501.53x = 42,693.98 × 16,779.21
  4. Step 4: Simplify right side
    28,501.53x = 716,371,172.26
  5. Step 5: Solve for x
    x = 716,371,172.26/28,501.53
  6. Step 6: Final answer
    x = 25,134.48

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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.