Home / 20,171,925-27,837,256.50-12,928,581

Finding the Fourth Proportional to 20,171,925, 27,837,256.50 and 12,928,581

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Solution

The fourth proportional to 20,171,925, 27,837,256.50 and 12,928,581 is: 17,841,441.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,171,925 : 27,837,256.50 = 12,928,581 : x
  2. Step 2: Convert to fraction form
    20,171,925/27,837,256.50 = 12,928,581/x
  3. Step 3: Cross multiply
    20,171,925x = 27,837,256.50 × 12,928,581
  4. Step 4: Simplify right side
    20,171,925x = 359,896,225,478,026.50
  5. Step 5: Solve for x
    x = 359,896,225,478,026.50/20,171,925
  6. Step 6: Final answer
    x = 17,841,441.78

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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.