Home / 28,510.09-39,342.33-15,762.53

Finding the Fourth Proportional to 28,510.09, 39,342.33 and 15,762.53

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Solution

The fourth proportional to 28,510.09, 39,342.33 and 15,762.53 is: 21,751.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,510.09 : 39,342.33 = 15,762.53 : x
  2. Step 2: Convert to fraction form
    28,510.09/39,342.33 = 15,762.53/x
  3. Step 3: Cross multiply
    28,510.09x = 39,342.33 × 15,762.53
  4. Step 4: Simplify right side
    28,510.09x = 620,134,656.89
  5. Step 5: Solve for x
    x = 620,134,656.89/28,510.09
  6. Step 6: Final answer
    x = 21,751.41

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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.