Home / 28,445,102.76-39,254,345.82-15,392,361.72

Finding the Fourth Proportional to 28,445,102.76, 39,254,345.82 and 15,392,361.72

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Solution

The fourth proportional to 28,445,102.76, 39,254,345.82 and 15,392,361.72 is: 21,241,515.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,445,102.76 : 39,254,345.82 = 15,392,361.72 : x
  2. Step 2: Convert to fraction form
    28,445,102.76/39,254,345.82 = 15,392,361.72/x
  3. Step 3: Cross multiply
    28,445,102.76x = 39,254,345.82 × 15,392,361.72
  4. Step 4: Simplify right side
    28,445,102.76x = 604,217,089,943,410
  5. Step 5: Solve for x
    x = 604,217,089,943,410/28,445,102.76
  6. Step 6: Final answer
    x = 21,241,515.46

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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.