Home / 28,088.76-38,762.19-15,341.91

Finding the Fourth Proportional to 28,088.76, 38,762.19 and 15,341.91

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Solution

The fourth proportional to 28,088.76, 38,762.19 and 15,341.91 is: 21,171.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,088.76 : 38,762.19 = 15,341.91 : x
  2. Step 2: Convert to fraction form
    28,088.76/38,762.19 = 15,341.91/x
  3. Step 3: Cross multiply
    28,088.76x = 38,762.19 × 15,341.91
  4. Step 4: Simplify right side
    28,088.76x = 594,686,030.38
  5. Step 5: Solve for x
    x = 594,686,030.38/28,088.76
  6. Step 6: Final answer
    x = 21,171.67

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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.