Home / 28,324.95-39,088.85-15,578.67

Finding the Fourth Proportional to 28,324.95, 39,088.85 and 15,578.67

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Solution

The fourth proportional to 28,324.95, 39,088.85 and 15,578.67 is: 21,498.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,324.95 : 39,088.85 = 15,578.67 : x
  2. Step 2: Convert to fraction form
    28,324.95/39,088.85 = 15,578.67/x
  3. Step 3: Cross multiply
    28,324.95x = 39,088.85 × 15,578.67
  4. Step 4: Simplify right side
    28,324.95x = 608,952,294.83
  5. Step 5: Solve for x
    x = 608,952,294.83/28,324.95
  6. Step 6: Final answer
    x = 21,498.80

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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.