Home / 28,247.86-38,981.93-15,501.25

Finding the Fourth Proportional to 28,247.86, 38,981.93 and 15,501.25

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Solution

The fourth proportional to 28,247.86, 38,981.93 and 15,501.25 is: 21,391.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,247.86 : 38,981.93 = 15,501.25 : x
  2. Step 2: Convert to fraction form
    28,247.86/38,981.93 = 15,501.25/x
  3. Step 3: Cross multiply
    28,247.86x = 38,981.93 × 15,501.25
  4. Step 4: Simplify right side
    28,247.86x = 604,268,681.17
  5. Step 5: Solve for x
    x = 604,268,681.17/28,247.86
  6. Step 6: Final answer
    x = 21,391.67

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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.