Home / 20,911,041.40-31,349,973.30-11,455,425.40

Finding the Fourth Proportional to 20,911,041.40, 31,349,973.30 and 11,455,425.40

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Solution

The fourth proportional to 20,911,041.40, 31,349,973.30 and 11,455,425.40 is: 17,174,050.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,911,041.40 : 31,349,973.30 = 11,455,425.40 : x
  2. Step 2: Convert to fraction form
    20,911,041.40/31,349,973.30 = 11,455,425.40/x
  3. Step 3: Cross multiply
    20,911,041.40x = 31,349,973.30 × 11,455,425.40
  4. Step 4: Simplify right side
    20,911,041.40x = 359,127,280,430,141.81
  5. Step 5: Solve for x
    x = 359,127,280,430,141.81/20,911,041.40
  6. Step 6: Final answer
    x = 17,174,050.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.